{"url":"http://public2.vulnerablecode.io/api/packages/22556?format=json","purl":"pkg:npm/ckeditor4@4.15.1","type":"npm","namespace":"","name":"ckeditor4","version":"4.15.1","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"4.25.0","latest_non_vulnerable_version":"4.25.0","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/361030?format=json","vulnerability_id":"VCID-2nkt-5pmx-zyh8","summary":"Duplicate Advisory: CKEditor Cross-site Scripting vulnerability\n## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-wh5w-82f3-wrxh. This link is maintained to preserve external references.\n\n## Original Description\nA Cross-Site scripting vulnerability has been found in CKSource CKEditor affecting versions 4.15.1 and earlier. An attacker could send malicious javascript code through the /`ckeditor/samples/old/ajax.html` file and retrieve an authorized user's information.","references":[{"reference_url":"https://github.com/ckeditor/ckeditor4-releases","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://github.com/ckeditor/ckeditor4-releases"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2023-4771","reference_id":"CVE-2023-4771","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://nvd.nist.gov/vuln/detail/CVE-2023-4771"},{"reference_url":"https://github.com/advisories/GHSA-hxjc-9j8v-v9pr","reference_id":"GHSA-hxjc-9j8v-v9pr","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-hxjc-9j8v-v9pr"}],"fixed_packages":[],"aliases":["GHSA-hxjc-9j8v-v9pr"],"risk_score":null,"exploitability":null,"weighted_severity":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-2nkt-5pmx-zyh8"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/61792?format=json","vulnerability_id":"VCID-3ffd-775p-nfcc","summary":"CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A cross-site scripting vulnerability has been discovered in the core HTML parsing module in versions of CKEditor4 prior to 4.24.0-lts. It may affect all editor instances that enabled full-page editing mode or enabled CDATA elements in Advanced Content Filtering configuration (defaults to `script` and `style` elements). The vulnerability allows attackers to inject malformed HTML content bypassing Advanced Content Filtering mechanism, which could result in executing JavaScript code. An attacker could abuse faulty CDATA content detection and use it to prepare an intentional attack on the editor. A fix is available in version 4.24.0-lts.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2024-24815","reference_id":"","reference_type":"","scores":[{"value":"0.00169","scoring_system":"epss","scoring_elements":"0.37833","published_at":"2026-06-11T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2024-24815"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-24815","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-24815"},{"reference_url":"https://github.com/ckeditor/ckeditor4","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://github.com/ckeditor/ckeditor4"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1063536","reference_id":"1063536","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1063536"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1063537","reference_id":"1063537","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1063537"},{"reference_url":"https://github.com/ckeditor/ckeditor4/commit/8ed1a3c93d0ae5f49f4ecff5738ab8a2972194cb","reference_id":"8ed1a3c93d0ae5f49f4ecff5738ab8a2972194cb","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":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-02-08T16:41:58Z/"}],"url":"https://github.com/ckeditor/ckeditor4/commit/8ed1a3c93d0ae5f49f4ecff5738ab8a2972194cb"},{"reference_url":"https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_dtd.html#property-S-cdata","reference_id":"CKEDITOR_dtd.html#property-S-cdata","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":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-02-08T16:41:58Z/"}],"url":"https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_dtd.html#property-S-cdata"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2024-24815","reference_id":"CVE-2024-24815","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://nvd.nist.gov/vuln/detail/CVE-2024-24815"},{"reference_url":"https://ckeditor.com/docs/ckeditor4/latest/guide/dev_advanced_content_filter.html","reference_id":"dev_advanced_content_filter.html","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":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-02-08T16:41:58Z/"}],"url":"https://ckeditor.com/docs/ckeditor4/latest/guide/dev_advanced_content_filter.html"},{"reference_url":"https://ckeditor.com/docs/ckeditor4/latest/features/fullpage.html","reference_id":"fullpage.html","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":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-02-08T16:41:58Z/"}],"url":"https://ckeditor.com/docs/ckeditor4/latest/features/fullpage.html"},{"reference_url":"https://github.com/advisories/GHSA-fq6h-4g8v-qqvm","reference_id":"GHSA-fq6h-4g8v-qqvm","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-fq6h-4g8v-qqvm"},{"reference_url":"https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-fq6h-4g8v-qqvm","reference_id":"GHSA-fq6h-4g8v-qqvm","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":"cvssv3.1_qr","scoring_elements":""},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-02-08T16:41:58Z/"}],"url":"https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-fq6h-4g8v-qqvm"},{"reference_url":"https://www.drupal.org/sa-contrib-2024-009","reference_id":"sa-contrib-2024-009","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":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-02-08T16:41:58Z/"}],"url":"https://www.drupal.org/sa-contrib-2024-009"},{"reference_url":"https://usn.ubuntu.com/7258-1/","reference_id":"USN-7258-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/7258-1/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/28808?format=json","purl":"pkg:npm/ckeditor4@4.24.0-lts","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor4@4.24.0-lts"}],"aliases":["CVE-2024-24815","GHSA-fq6h-4g8v-qqvm"],"risk_score":null,"exploitability":null,"weighted_severity":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-3ffd-775p-nfcc"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/31891?format=json","vulnerability_id":"VCID-3xk6-tdgu-wkbv","summary":"CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A potential vulnerability has been discovered in CKEditor 4 Code Snippet GeSHi plugin. The vulnerability allowed a reflected XSS attack by exploiting a flaw in the GeSHi syntax highlighter library hosted by the victim. The GeSHi library was included as a vendor dependency in CKEditor 4 source files. In a specific scenario, an attacker could craft a malicious script that could be executed by sending a request to the GeSHi library hosted on a PHP web server. The GeSHi library is no longer actively maintained. Due to the lack of ongoing support and updates, potential security vulnerabilities have been identified with its continued use. To mitigate these risks and enhance the overall security of the CKEditor 4, we have decided to completely remove the GeSHi library as a dependency. This change aims to maintain a secure environment and reduce the risk of any security incidents related to outdated or unsupported software. The fix is be available in version 4.25.0-lts.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2024-43407","reference_id":"","reference_type":"","scores":[{"value":"0.01847","scoring_system":"epss","scoring_elements":"0.834","published_at":"2026-06-11T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2024-43407"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-43407","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-43407"},{"reference_url":"https://github.com/ckeditor/ckeditor4","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":"5.3","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor4"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1083192","reference_id":"1083192","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1083192"},{"reference_url":"https://github.com/ckeditor/ckeditor4/commit/71072c9f7f263329841bd38e7e5309074c82ef94","reference_id":"71072c9f7f263329841bd38e7e5309074c82ef94","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":"5.3","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-08-21T19:12:17Z/"}],"url":"https://github.com/ckeditor/ckeditor4/commit/71072c9f7f263329841bd38e7e5309074c82ef94"},{"reference_url":"https://github.com/ckeditor/ckeditor4/commit/951e7d75fcbcaa2590b0719fb0bb0dd0539ca6fa","reference_id":"951e7d75fcbcaa2590b0719fb0bb0dd0539ca6fa","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":"5.3","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-08-21T19:12:17Z/"}],"url":"https://github.com/ckeditor/ckeditor4/commit/951e7d75fcbcaa2590b0719fb0bb0dd0539ca6fa"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2024-43407","reference_id":"CVE-2024-43407","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":"5.3","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-43407"},{"reference_url":"https://github.com/advisories/GHSA-7r32-vfj5-c2jv","reference_id":"GHSA-7r32-vfj5-c2jv","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-7r32-vfj5-c2jv"},{"reference_url":"https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-7r32-vfj5-c2jv","reference_id":"GHSA-7r32-vfj5-c2jv","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":"cvssv3.1_qr","scoring_elements":""},{"value":"5.3","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-08-21T19:12:17Z/"}],"url":"https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-7r32-vfj5-c2jv"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/33065?format=json","purl":"pkg:npm/ckeditor4@4.25.0","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor4@4.25.0"}],"aliases":["CVE-2024-43407","GHSA-7r32-vfj5-c2jv"],"risk_score":null,"exploitability":null,"weighted_severity":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-3xk6-tdgu-wkbv"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/208340?format=json","vulnerability_id":"VCID-4x7f-qttc-j3bn","summary":"It 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":"0.70423","published_at":"2026-06-11T12:55:00Z"}],"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://github.com/ckeditor/ckeditor4/blob/master/CHANGES.md#ckeditor-416","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor4/blob/master/CHANGES.md#ckeditor-416"},{"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://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://nvd.nist.gov/vuln/detail/CVE-2021-26271","reference_id":"CVE-2021-26271","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://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":[],"aliases":["CVE-2021-26271","GHSA-f6rf-9m92-x2hh","GHSA-jv4c-7jqq-m34x"],"risk_score":null,"exploitability":null,"weighted_severity":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-4x7f-qttc-j3bn"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/208341?format=json","vulnerability_id":"VCID-68q6-esms-wyae","summary":"It 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":"0.66468","published_at":"2026-06-11T12:55:00Z"}],"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://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/382220?format=json","purl":"pkg:npm/ckeditor4@4.16.0","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-3ffd-775p-nfcc"},{"vulnerability":"VCID-3xk6-tdgu-wkbv"},{"vulnerability":"VCID-dvyp-tj1j-1qcy"},{"vulnerability":"VCID-e6zg-urmk-bqch"},{"vulnerability":"VCID-h8p7-vm9w-n7f7"},{"vulnerability":"VCID-ha1k-ctdq-t3eb"},{"vulnerability":"VCID-j6mw-mbmc-yub7"},{"vulnerability":"VCID-mrpz-zftg-q7aa"},{"vulnerability":"VCID-nwy3-bgc5-tuh3"},{"vulnerability":"VCID-v69x-fke2-h7a6"},{"vulnerability":"VCID-wamn-x2ys-f3hn"},{"vulnerability":"VCID-yang-fa4m-f3gr"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor4@4.16.0"}],"aliases":["CVE-2021-26272","GHSA-wpvm-wqr4-p7cw"],"risk_score":null,"exploitability":null,"weighted_severity":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-68q6-esms-wyae"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/208530?format=json","vulnerability_id":"VCID-dvyp-tj1j-1qcy","summary":"ckeditor is an open source WYSIWYG HTML editor with rich content support. A potential vulnerability has been discovered in CKEditor 4 [Clipboard](https://ckeditor.com/cke4/addon/clipboard) package. The vulnerability allowed to abuse paste functionality using malformed HTML, which could result in injecting arbitrary HTML into the editor. It affects all users using the CKEditor 4 plugins listed above at version >= 4.5.2. The problem has been recognized and patched. The fix will be available in version 4.16.2.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-32809","reference_id":"","reference_type":"","scores":[{"value":"0.00236","scoring_system":"epss","scoring_elements":"0.46813","published_at":"2026-06-11T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-32809"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32809","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32809"},{"reference_url":"https://github.com/ckeditor/ckeditor4","reference_id":"","reference_type":"","scores":[{"value":"4.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor4"},{"reference_url":"https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-7889-rm5j-hpgg","reference_id":"","reference_type":"","scores":[{"value":"4.6","scoring_system":"cvssv3","scoring_elements":""},{"value":"4.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-7889-rm5j-hpgg"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T","reference_id":"","reference_type":"","scores":[{"value":"4.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/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/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T/","reference_id":"","reference_type":"","scores":[],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T/"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW","reference_id":"","reference_type":"","scores":[{"value":"4.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/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/UVOYN2WKDPLKCNILIGEZM236ABQASLGW"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW/","reference_id":"","reference_type":"","scores":[],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW/"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD","reference_id":"","reference_type":"","scores":[{"value":"4.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/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/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD/","reference_id":"","reference_type":"","scores":[],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD/"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32809","reference_id":"","reference_type":"","scores":[{"value":"4.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32809"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=992291","reference_id":"992291","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=992291"},{"reference_url":"https://github.com/advisories/GHSA-7889-rm5j-hpgg","reference_id":"GHSA-7889-rm5j-hpgg","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-7889-rm5j-hpgg"},{"reference_url":"https://usn.ubuntu.com/5340-1/","reference_id":"USN-5340-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/5340-1/"},{"reference_url":"https://usn.ubuntu.com/USN-5340-2/","reference_id":"USN-USN-5340-2","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/USN-5340-2/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/382851?format=json","purl":"pkg:npm/ckeditor4@4.16.2","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-3ffd-775p-nfcc"},{"vulnerability":"VCID-3xk6-tdgu-wkbv"},{"vulnerability":"VCID-h8p7-vm9w-n7f7"},{"vulnerability":"VCID-ha1k-ctdq-t3eb"},{"vulnerability":"VCID-j6mw-mbmc-yub7"},{"vulnerability":"VCID-mrpz-zftg-q7aa"},{"vulnerability":"VCID-nwy3-bgc5-tuh3"},{"vulnerability":"VCID-wamn-x2ys-f3hn"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor4@4.16.2"}],"aliases":["CVE-2021-32809","GHSA-7889-rm5j-hpgg"],"risk_score":null,"exploitability":"0.5","weighted_severity":"0.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-dvyp-tj1j-1qcy"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/208529?format=json","vulnerability_id":"VCID-e6zg-urmk-bqch","summary":"ckeditor is an open source WYSIWYG HTML editor with rich content support. A vulnerability has been discovered in the clipboard Widget plugin if used alongside the undo feature. The vulnerability allows a user to abuse undo functionality using malformed widget HTML, which could result in executing JavaScript code. It affects all users using the CKEditor 4 plugins listed above at version >= 4.13.0. The problem has been recognized and patched. The fix will be available in version 4.16.2.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-32808","reference_id":"","reference_type":"","scores":[{"value":"0.01368","scoring_system":"epss","scoring_elements":"0.80622","published_at":"2026-06-11T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-32808"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32808","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32808"},{"reference_url":"https://github.com/ckeditor/ckeditor4","reference_id":"","reference_type":"","scores":[{"value":"7.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor4"},{"reference_url":"https://github.com/ckeditor/ckeditor4/releases/tag/4.16.2","reference_id":"","reference_type":"","scores":[{"value":"7.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor4/releases/tag/4.16.2"},{"reference_url":"https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-6226-h7ff-ch6c","reference_id":"","reference_type":"","scores":[{"value":"7.6","scoring_system":"cvssv3","scoring_elements":""},{"value":"7.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N"},{"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-6226-h7ff-ch6c"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T","reference_id":"","reference_type":"","scores":[{"value":"7.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T/","reference_id":"","reference_type":"","scores":[],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T/"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW","reference_id":"","reference_type":"","scores":[{"value":"7.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW/","reference_id":"","reference_type":"","scores":[],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW/"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD","reference_id":"","reference_type":"","scores":[{"value":"7.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD/","reference_id":"","reference_type":"","scores":[],"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD/"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32808","reference_id":"","reference_type":"","scores":[{"value":"7.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32808"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=992292","reference_id":"992292","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=992292"},{"reference_url":"https://github.com/advisories/GHSA-6226-h7ff-ch6c","reference_id":"GHSA-6226-h7ff-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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 `