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editor.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2020-9440","reference_id":"","reference_type":"","scores":[{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65501","published_at":"2026-05-14T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65444","published_at":"2026-05-12T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65244","published_at":"2026-04-01T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65294","published_at":"2026-04-02T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.6532","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65284","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65336","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65348","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65367","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65354","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65326","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65363","published_at":"2026-05-05T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65374","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65359","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65376","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65388","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65384","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.6541","published_at":"2026-05-07T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65454","published_at":"2026-05-09T12:55:00Z"},{"value":"0.00485","scoring_system":"epss","scoring_elements":"0.65424","published_at":"2026-05-11T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2020-9440"},{"reference_url":"https://ckeditor.com/blog/CKEditor-4.14-with-Paste-from-LibreOffice-released/#security-issues-fixed","reference_id":"","reference_type":"","scores":[],"url":"https://ckeditor.com/blog/CKEditor-4.14-with-Paste-from-LibreOffice-released/#security-issues-fixed"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7OJ4BSS3VEAEXPNSOOUAXX6RDNECGZNO/","reference_id":"","reference_type":"","scores":[],"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7OJ4BSS3VEAEXPNSOOUAXX6RDNECGZNO/"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L322YA73LCV3TO7ORY45WQDAFJVNKXBE/","reference_id":"","reference_type":"","scores":[],"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L322YA73LCV3TO7ORY45WQDAFJVNKXBE/"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M4HHYQ6N452XTCIROFMJOTYEUWSB6FR4/","reference_id":"","reference_type":"","scores":[],"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M4HHYQ6N452XTCIROFMJOTYEUWSB6FR4/"},{"reference_url":"https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:ckeditor:ckeditor:4.0:*:*:*:*:*:*:*","reference_id":"cpe:2.3:a:ckeditor:ckeditor:4.0:*:*:*:*:*:*:*","reference_type":"","scores":[],"url":"https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:ckeditor:ckeditor:4.0:*:*:*:*:*:*:*"},{"reference_url":"https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:webspellchecker:webspellchecker:*:*:*:*:*:*:*:*","reference_id":"cpe:2.3:a:webspellchecker:webspellchecker:*:*:*:*:*:*:*:*","reference_type":"","scores":[],"url":"https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:webspellchecker:webspellchecker:*:*:*:*:*:*:*:*"},{"reference_url":"https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*","reference_id":"cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*","reference_type":"","scores":[],"url":"https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*"},{"reference_url":"https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSea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Neutralization of Input During Web Page Generation ('Cross-site Scripting')\nCKEditor4 is an open source WYSIWYG HTML editor. The vulnerability allowed to inject malformed HTML bypassing content sanitization, which could result in executing JavaScript code.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-41164","reference_id":"","reference_type":"","scores":[{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22783","published_at":"2026-04-01T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22754","published_at":"2026-05-14T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22677","published_at":"2026-05-12T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22661","published_at":"2026-05-11T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22693","published_at":"2026-05-09T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22613","published_at":"2026-05-07T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22531","published_at":"2026-05-05T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22635","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.2264","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22647","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22811","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22851","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22857","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22843","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.229","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22936","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22916","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22863","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22789","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22997","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00076","scoring_system":"epss","scoring_elements":"0.22953","published_at":"2026-04-02T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-41164"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41164","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41164"},{"reference_url":"https://github.com/ckeditor/ckeditor4","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor4"},{"reference_url":"https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-417","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-417"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VR76VBN5GW5QUBJFHVXRX36UZ6YTCMW6","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VR76VBN5GW5QUBJFHVXRX36UZ6YTCMW6"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VR76VBN5GW5QUBJFHVXRX36UZ6YTCMW6/","reference_id":"","reference_type":"","scores":[],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VR76VBN5GW5QUBJFHVXRX36UZ6YTCMW6/"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WOZGMCYDB2OKKULFXZKM6V7JJW4ZZHJP","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WOZGMCYDB2OKKULFXZKM6V7JJW4ZZHJP"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WOZGMCYDB2OKKULFXZKM6V7JJW4ZZHJP/","reference_id":"","reference_type":"","scores":[],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WOZGMCYDB2OKKULFXZKM6V7JJW4ZZHJP/"},{"reference_url":"https://www.drupal.org/sa-core-2021-011","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.drupal.org/sa-core-2021-011"},{"reference_url":"https://www.oracle.com/security-alerts/cpuapr2022.html","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.oracle.com/security-alerts/cpuapr2022.html"},{"reference_url":"https://www.oracle.com/security-alerts/cpujan2022.html","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.oracle.com/security-alerts/cpujan2022.html"},{"reference_url":"https://www.oracle.com/security-alerts/cpujul2022.html","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.oracle.com/security-alerts/cpujul2022.html"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=999909","reference_id":"999909","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=999909"},{"reference_url":"https://security.archlinux.org/AVG-2565","reference_id":"AVG-2565","reference_type":"","scores":[{"value":"Medium","scoring_system":"archlinux","scoring_elements":""}],"url":"https://security.archlinux.org/AVG-2565"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41164","reference_id":"CVE-2021-41164","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41164"},{"reference_url":"https://github.com/advisories/GHSA-pvmx-g8h5-cprj","reference_id":"GHSA-pvmx-g8h5-cprj","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-pvmx-g8h5-cprj"},{"reference_url":"https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-pvmx-g8h5-cprj","reference_id":"GHSA-pvmx-g8h5-cprj","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3","scoring_elements":""},{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-pvmx-g8h5-cprj"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/41745?format=json","purl":"pkg:npm/ckeditor4@4.17.0","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-cjwn-p59n-8ygs"},{"vulnerability":"VCID-h8tt-ky69-fuch"},{"vulnerability":"VCID-k7qp-c6vp-sqbg"},{"vulnerability":"VCID-un66-k85j-b7d2"},{"vulnerability":"VCID-uw7w-utew-ufb2"},{"vulnerability":"VCID-vc97-xds1-67gu"},{"vulnerability":"VCID-xhp7-kqdk-tfeu"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor4@4.17.0"}],"aliases":["CVE-2021-41164","GHSA-pvmx-g8h5-cprj"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-8hvk-a5es-v3e4"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/56687?format=json","vulnerability_id":"VCID-c8r2-wpf3-47f9","summary":"CKEditor 4 ReDoS Vulnerability\nIt was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted text into the Styles input of specific dialogs (in the Advanced Tab for Dialogs plugin).","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-26271","reference_id":"","reference_type":"","scores":[{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.70116","published_at":"2026-05-14T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.69959","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.69943","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.69929","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.69972","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.69982","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.69964","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.70015","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.70024","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.69999","published_at":"2026-05-05T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.70041","published_at":"2026-05-07T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.70072","published_at":"2026-05-09T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.7004","published_at":"2026-05-11T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.70067","published_at":"2026-05-12T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.69867","published_at":"2026-04-01T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.69879","published_at":"2026-04-02T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.69894","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.69871","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.69919","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.69935","published_at":"2026-04-09T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-26271"},{"reference_url":"https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first","reference_id":"","reference_type":"","scores":[],"url":"https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26271","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26271"},{"reference_url":"https://github.com/ckeditor/ckeditor4","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor4"},{"reference_url":"https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26271","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26271"},{"reference_url":"https://web.archive.org/web/20210128132707/https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://web.archive.org/web/20210128132707/https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first"},{"reference_url":"https://www.oracle.com//security-alerts/cpujul2021.html","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.oracle.com//security-alerts/cpujul2021.html"},{"reference_url":"https://www.oracle.com/security-alerts/cpuoct2021.html","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.oracle.com/security-alerts/cpuoct2021.html"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982587","reference_id":"982587","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982587"},{"reference_url":"https://github.com/advisories/GHSA-jv4c-7jqq-m34x","reference_id":"GHSA-jv4c-7jqq-m34x","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-jv4c-7jqq-m34x"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/73722?format=json","purl":"pkg:npm/ckeditor4@4.16.0","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-17pr-6guy-53ge"},{"vulnerability":"VCID-4x92-vapt-n7dz"},{"vulnerability":"VCID-8hvk-a5es-v3e4"},{"vulnerability":"VCID-cjwn-p59n-8ygs"},{"vulnerability":"VCID-h8tt-ky69-fuch"},{"vulnerability":"VCID-k7qp-c6vp-sqbg"},{"vulnerability":"VCID-s8u8-xbdk-87dj"},{"vulnerability":"VCID-sd2a-hmu2-wbax"},{"vulnerability":"VCID-un66-k85j-b7d2"},{"vulnerability":"VCID-uw7w-utew-ufb2"},{"vulnerability":"VCID-vc97-xds1-67gu"},{"vulnerability":"VCID-vj35-jtgq-8qbv"},{"vulnerability":"VCID-xhp7-kqdk-tfeu"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor4@4.16.0"}],"aliases":["CVE-2021-26271","GHSA-jv4c-7jqq-m34x"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-c8r2-wpf3-47f9"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/34364?format=json","vulnerability_id":"VCID-h5zz-wz8f-2uf6","summary":"Inclusion of Functionality from Untrusted Control Sphere in CKEditor 4\nIt was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted URL-like text into the editor, and then press Enter or Space (in the Autolink plugin).","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-26272","reference_id":"","reference_type":"","scores":[{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66202","published_at":"2026-05-14T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.6603","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66042","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66061","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66049","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66018","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66054","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66068","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66056","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66077","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66088","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66086","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66064","published_at":"2026-05-05T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66109","published_at":"2026-05-07T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66152","published_at":"2026-05-09T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66124","published_at":"2026-05-11T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66145","published_at":"2026-05-12T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.65943","published_at":"2026-04-01T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.65985","published_at":"2026-04-02T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.66014","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00502","scoring_system":"epss","scoring_elements":"0.6598","published_at":"2026-04-07T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-26272"},{"reference_url":"https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3","scoring_elements":""},{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26272","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26272"},{"reference_url":"https://github.com/ckeditor/ckeditor4","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor4"},{"reference_url":"https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26272","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26272"},{"reference_url":"https://www.oracle.com/security-alerts/cpujan2022.html","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.oracle.com/security-alerts/cpujan2022.html"},{"reference_url":"https://www.oracle.com//security-alerts/cpujul2021.html","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.oracle.com//security-alerts/cpujul2021.html"},{"reference_url":"https://www.oracle.com/security-alerts/cpuoct2021.html","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.oracle.com/security-alerts/cpuoct2021.html"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982587","reference_id":"982587","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982587"},{"reference_url":"https://github.com/advisories/GHSA-wpvm-wqr4-p7cw","reference_id":"GHSA-wpvm-wqr4-p7cw","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-wpvm-wqr4-p7cw"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/73722?format=json","purl":"pkg:npm/ckeditor4@4.16.0","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-17pr-6guy-53ge"},{"vulnerability":"VCID-4x92-vapt-n7dz"},{"vulnerability":"VCID-8hvk-a5es-v3e4"},{"vulnerability":"VCID-cjwn-p59n-8ygs"},{"vulnerability":"VCID-h8tt-ky69-fuch"},{"vulnerability":"VCID-k7qp-c6vp-sqbg"},{"vulnerability":"VCID-s8u8-xbdk-87dj"},{"vulnerability":"VCID-sd2a-hmu2-wbax"},{"vulnerability":"VCID-un66-k85j-b7d2"},{"vulnerability":"VCID-uw7w-utew-ufb2"},{"vulnerability":"VCID-vc97-xds1-67gu"},{"vulnerability":"VCID-vj35-jtgq-8qbv"},{"vulnerability":"VCID-xhp7-kqdk-tfeu"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor4@4.16.0"}],"aliases":["CVE-2021-26272","GHSA-wpvm-wqr4-p7cw"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-h5zz-wz8f-2uf6"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/16848?format=json","vulnerability_id":"VCID-k7qp-c6vp-sqbg","summary":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')\nCKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A cross-site scripting vulnerability has been discovered affecting Iframe Dialog and Media Embed packages. The vulnerability may trigger a JavaScript code after fulfilling special conditions: using one of the affected packages on a web page with missing proper Content Security Policy configuration; initializing the editor on an element and using an element other than `<textarea>` as a base; and destroying the editor instance. This vulnerability might affect a small percentage of integrators that depend on dynamic editor initialization/destroy mechanism. A fix is available in CKEditor4 version 4.21.0. In some rare cases, a security fix may be considered a breaking change. Starting from version 4.21.0, the Iframe Dialog plugin applies the `sandbox` attribute by default, which restricts JavaScript code execution in the iframe element. To change this behavior, configure the `config.iframe_attributes` option. Also starting from version 4.21.0, the Media Embed plugin regenerates the entire content of the embed widget by default. To change this behavior, configure the `config.embed_keepOriginalContent` option. Those who choose to enable either of the more permissive options or who cannot upgrade to a patched version should properly configure Content Security Policy to avoid any potential security issues that may arise from embedding iframe elements on their web page.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2023-28439","reference_id":"","reference_type":"","scores":[{"value":"0.0031","scoring_system":"epss","scoring_elements":"0.5411","published_at":"2026-04-02T12:55:00Z"},{"value":"0.0031","scoring_system":"epss","scoring_elements":"0.54139","published_at":"2026-04-04T12:55:00Z"},{"value":"0.0031","scoring_system":"epss","scoring_elements":"0.54115","published_at":"2026-04-07T12:55:00Z"},{"value":"0.0031","scoring_system":"epss","scoring_elements":"0.54166","published_at":"2026-04-08T12:55:00Z"},{"value":"0.0036","scoring_system":"epss","scoring_elements":"0.58214","published_at":"2026-04-12T12:55:00Z"},{"value":"0.0036","scoring_system":"epss","scoring_elements":"0.58235","published_at":"2026-05-09T12:55:00Z"},{"value":"0.0036","scoring_system":"epss","scoring_elements":"0.58174","published_at":"2026-05-07T12:55:00Z"},{"value":"0.0036","scoring_system":"epss","scoring_elements":"0.58131","published_at":"2026-05-05T12:55:00Z"},{"value":"0.0036","scoring_system":"epss","scoring_elements":"0.58183","published_at":"2026-04-26T12:55:00Z"},{"value":"0.0036","scoring_system":"epss","scoring_elements":"0.58169","published_at":"2026-04-29T12:55:00Z"},{"value":"0.0036","scoring_system":"epss","scoring_elements":"0.58204","published_at":"2026-04-21T12:55:00Z"},{"value":"0.0036","scoring_system":"epss","scoring_elements":"0.58229","published_at":"2026-04-18T12:55:00Z"},{"value":"0.0036","scoring_system":"epss","scoring_elements":"0.58226","published_at":"2026-04-16T12:55:00Z"},{"value":"0.0036","scoring_system":"epss","scoring_elements":"0.58186","published_at":"2026-05-11T12:55:00Z"},{"value":"0.0036","scoring_system":"epss","scoring_elements":"0.58215","published_at":"2026-05-12T12:55:00Z"},{"value":"0.0036","scoring_system":"epss","scoring_elements":"0.58194","published_at":"2026-04-13T12:55:00Z"},{"value":"0.0036","scoring_system":"epss","scoring_elements":"0.58221","published_at":"2026-04-09T12:55:00Z"},{"value":"0.0036","scoring_system":"epss","scoring_elements":"0.58238","published_at":"2026-04-11T12:55:00Z"},{"value":"0.0054","scoring_system":"epss","scoring_elements":"0.67795","published_at":"2026-05-14T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2023-28439"},{"reference_url":"https://ckeditor.com/cke4/addon/embed","reference_id":"","reference_type":"","scores":[{"value":"4.7","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-10-15T17:09:11Z/"}],"url":"https://ckeditor.com/cke4/addon/embed"},{"reference_url":"https://ckeditor.com/cke4/addon/iframe","reference_id":"","reference_type":"","scores":[{"value":"4.7","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-10-15T17:09:11Z/"}],"url":"https://ckeditor.com/cke4/addon/iframe"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-28439","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-28439"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1034481","reference_id":"1034481","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1034481"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1059301","reference_id":"1059301","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1059301"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28439","reference_id":"CVE-2023-28439","reference_type":"","scores":[],"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28439"},{"reference_url":"https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-vh5c-xwqv-cv9g","reference_id":"GHSA-vh5c-xwqv-cv9g","reference_type":"","scores":[{"value":"4.7","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-10-15T17:09:11Z/"}],"url":"https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-vh5c-xwqv-cv9g"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GWKG2VCPJNETVCDTXU4X6FQ2PO6XCNGN/","reference_id":"GWKG2VCPJNETVCDTXU4X6FQ2PO6XCNGN","reference_type":"","scores":[{"value":"4.7","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-10-15T17:09:11Z/"}],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GWKG2VCPJNETVCDTXU4X6FQ2PO6XCNGN/"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L4ODGOW6PYVOXHQSMWJBOCE6DXWAI33W/","reference_id":"L4ODGOW6PYVOXHQSMWJBOCE6DXWAI33W","reference_type":"","scores":[{"value":"4.7","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-10-15T17:09:11Z/"}],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L4ODGOW6PYVOXHQSMWJBOCE6DXWAI33W/"},{"reference_url":"https://usn.ubuntu.com/7258-1/","reference_id":"USN-7258-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/7258-1/"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VCYKD3JZWWA3ESOZG4PHJJEXT4EYIUIQ/","reference_id":"VCYKD3JZWWA3ESOZG4PHJJEXT4EYIUIQ","reference_type":"","scores":[{"value":"4.7","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-10-15T17:09:11Z/"}],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VCYKD3JZWWA3ESOZG4PHJJEXT4EYIUIQ/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/56500?format=json","purl":"pkg:npm/ckeditor4@4.21.0","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-cjwn-p59n-8ygs"},{"vulnerability":"VCID-h8tt-ky69-fuch"},{"vulnerability":"VCID-uw7w-utew-ufb2"},{"vulnerability":"VCID-vc97-xds1-67gu"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor4@4.21.0"}],"aliases":["CVE-2023-28439","GHSA-vh5c-xwqv-cv9g"],"risk_score":2.1,"exploitability":"0.5","weighted_severity":"4.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-k7qp-c6vp-sqbg"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/48150?format=json","vulnerability_id":"VCID-nj3a-eb59-jygs","summary":"CKEditor 4.0 vulnerability in the HTML Data Processor\nA cross-site scripting (XSS) vulnerability in the HTML Data Processor for CKEditor 4.0 before 4.14.0 allows remote attackers to inject arbitrary web script through a crafted \"protected\" comment (with the cke_protected syntax).","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2020-9281","reference_id":"","reference_type":"","scores":[{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.79038","published_at":"2026-05-14T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78808","published_at":"2026-04-01T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78815","published_at":"2026-04-02T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78844","published_at":"2026-04-04T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78828","published_at":"2026-04-07T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78853","published_at":"2026-04-08T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78859","published_at":"2026-04-09T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78882","published_at":"2026-04-11T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78866","published_at":"2026-04-12T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78857","published_at":"2026-04-13T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78885","published_at":"2026-04-16T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78883","published_at":"2026-04-18T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78879","published_at":"2026-04-21T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78909","published_at":"2026-04-24T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78916","published_at":"2026-04-26T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78933","published_at":"2026-04-29T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78949","published_at":"2026-05-05T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78971","published_at":"2026-05-07T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78985","published_at":"2026-05-09T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.78982","published_at":"2026-05-11T12:55:00Z"},{"value":"0.01194","scoring_system":"epss","scoring_elements":"0.79","published_at":"2026-05-12T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2020-9281"},{"reference_url":"https://github.com/ckeditor/ckeditor4","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3","scoring_elements":""},{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor4"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7OJ4BSS3VEAEXPNSOOUAXX6RDNECGZNO","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7OJ4BSS3VEAEXPNSOOUAXX6RDNECGZNO"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7OJ4BSS3VEAEXPNSOOUAXX6RDNECGZNO/","reference_id":"","reference_type":"","scores":[],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7OJ4BSS3VEAEXPNSOOUAXX6RDNECGZNO/"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L322YA73LCV3TO7ORY45WQDAFJVNKXBE","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L322YA73LCV3TO7ORY45WQDAFJVNKXBE"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L322YA73LCV3TO7ORY45WQDAFJVNKXBE/","reference_id":"","reference_type":"","scores":[],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L322YA73LCV3TO7ORY45WQDAFJVNKXBE/"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M4HHYQ6N452XTCIROFMJOTYEUWSB6FR4","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"gen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Scripting\nCKEditor allows user-assisted XSS involving a source-mode paste.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2018-17960","reference_id":"","reference_type":"","scores":[{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83956","published_at":"2026-05-14T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83706","published_at":"2026-04-01T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.8372","published_at":"2026-04-02T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83734","published_at":"2026-04-04T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83737","published_at":"2026-04-07T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83761","published_at":"2026-04-08T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83767","published_at":"2026-04-09T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83783","published_at":"2026-04-11T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83777","published_at":"2026-04-12T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83773","published_at":"2026-04-13T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83806","published_at":"2026-04-16T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83808","published_at":"2026-04-21T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83833","published_at":"2026-04-24T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83841","published_at":"2026-04-26T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83846","published_at":"2026-04-29T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83868","published_at":"2026-05-05T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83889","published_at":"2026-05-07T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83905","published_at":"2026-05-11T12:55:00Z"},{"value":"0.02024","scoring_system":"epss","scoring_elements":"0.83921","published_at":"2026-05-12T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2018-17960"},{"reference_url":"https://ckeditor.com/blog/CKEditor-4.11-with-emoji-dropdown-and-auto-link-on-typing-released","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://ckeditor.com/blog/CKEditor-4.11-with-emoji-dropdown-and-auto-link-on-typing-released"},{"reference_url":"https://ckeditor.com/blog/CKEditor-4.11-with-emoji-dropdown-and-auto-link-on-typing-released/","reference_id":"","reference_type":"","scores":[],"url":"https://ckeditor.com/blog/CKEditor-4.11-with-emoji-dropdown-and-auto-link-on-typing-released/"},{"reference_url":"https://ckeditor.com/cke4/release/CKEditor-4.11.0","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://ckeditor.com/cke4/release/CKEditor-4.11.0"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17960","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17960"},{"reference_url":"https://typo3.org/security/advisory/typo3-core-sa-2018-005","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://typo3.org/security/advisory/typo3-core-sa-2018-005"},{"reference_url":"https://web.archive.org/web/20200227030123/http://www.securityfocus.com/bid/109205","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://web.archive.org/web/20200227030123/http://www.securityfocus.com/bid/109205"},{"reference_url":"https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1015217","reference_id":"1015217","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi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Neutralization of Input During Web Page Generation ('Cross-site Scripting')\nCKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A vulnerability has been discovered in the core HTML processing module and may affect all plugins used by CKEditor 4 prior to version 4.18.0. The vulnerability allows someone to inject malformed HTML bypassing content sanitization, which could result in executing JavaScript code. This problem has been patched in version 4.18.0. 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Input Validation\nCKEditor4 is an open source what-you-see-is-what-you-get HTML editor. CKEditor4 prior to version 4.18.0 contains a vulnerability in the `dialog` plugin. The vulnerability allows abuse of a dialog input validator regular expression, which can cause a significant performance drop resulting in a browser tab freeze. A patch is available in version 4.18.0. There are currently no known workarounds.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2022-24729","reference_id":"","reference_type":"","scores":[{"value":"0.00843","scoring_system":"epss","scoring_elements":"0.74879","published_at":"2026-05-12T12:55:00Z"},{"value":"0.00843","scoring_system":"epss","scoring_elements":"0.74834","published_at":"2026-05-05T12:55:00Z"},{"value":"0.00843","scoring_system":"epss","scoring_elements":"0.74863","published_at":"2026-05-07T12:55:00Z"},{"value":"0.00843","scoring_system":"epss","scoring_elements":"0.74888","published_at":"2026-05-09T12:55:00Z"},{"value":"0.00843","scoring_system":"epss","scoring_elements":"0.74861","published_at":"2026-05-11T12:55:00Z"},{"value":"0.00845","scoring_system":"epss","scoring_elements":"0.74849","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00845","scoring_system":"epss","scoring_elements":"0.74856","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00845","scoring_system":"epss","scoring_elements":"0.7486","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00845","scoring_system":"epss","scoring_elements":"0.74813","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00857","scoring_system":"epss","scoring_elements":"0.75029","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00857","scoring_system":"epss","scoring_elements":"0.74944","published_at":"2026-04-02T12:55:00Z"},{"value":"0.00857","scoring_system":"epss","scoring_elements":"0.74973","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00857","scoring_system":"epss","scoring_elements":"0.74949","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00857","scoring_system":"epss","scoring_elements":"0.74983","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00857","scoring_system":"epss","scoring_elements":"0.74995","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00857","scoring_system":"epss","scoring_elements":"0.75017","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00857","scoring_system":"epss","scoring_elements":"0.74996","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00857","scoring_system":"epss","scoring_elements":"0.74986","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00857","scoring_system":"epss","scoring_elements":"0.75022","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00944","scoring_system":"epss","scoring_elements":"0.76469","published_at":"2026-05-14T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2022-24729"},{"reference_url":"https://ckeditor.com/cke4/release/CKEditor-4.18.0","reference_id":"","reference_type":"","scores":[],"url":"https://ckeditor.com/cke4/release/CKEditor-4.18.0"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24729","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24729"},{"reference_url":"https://www.drupal.org/sa-core-2022-005","reference_id":"","reference_type":"","scores":[],"url":"https://www.drupal.org/sa-core-2022-005"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2022-24729","reference_id":"CVE-2022-24729","reference_type":"","scores":[],"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-24729"},{"reference_url":"https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-f6rf-9m92-x2hh","reference_id":"GHSA-f6rf-9m92-x2hh","reference_type":"","scores":[],"url":"https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-f6rf-9m92-x2hh"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/47682?format=json","purl":"pkg:npm/ckeditor4@4.18.0","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-cjwn-p59n-8ygs"},{"vulnerability":"VCID-h8tt-ky69-fuch"},{"vulnerability":"VCID-k7qp-c6vp-sqbg"},{"vulnerability":"VCID-uw7w-utew-ufb2"},{"vulnerability":"VCID-vc97-xds1-67gu"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor4@4.18.0"}],"aliases":["CVE-2022-24729","GHSA-f6rf-9m92-x2hh"],"risk_score":null,"exploitability":"0.5","weighted_severity":"0.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-xhp7-kqdk-tfeu"}],"fixing_vulnerabilities":[],"risk_score":"4.0","resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor4@4.0.0"}