{"url":"http://public2.vulnerablecode.io/api/packages/57026?format=json","purl":"pkg:npm/ckeditor@4.11.0","type":"npm","namespace":"","name":"ckeditor","version":"4.11.0","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"4.16.0","latest_non_vulnerable_version":"4.18.0","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/42697?format=json","vulnerability_id":"VCID-2nbt-ysxu-d3bu","summary":"Improper 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-2021-26271","reference_id":"","reference_type":"","scores":[{"value":"0.00617","scoring_system":"epss","scoring_elements":"0.7032","published_at":"2026-06-04T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-26271"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2022-24729","reference_id":"","reference_type":"","scores":[{"value":"0.01115","scoring_system":"epss","scoring_elements":"0.78532","published_at":"2026-06-04T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2022-24729"},{"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://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://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://www.drupal.org/sa-core-2022-005","reference_id":"","reference_type":"","scores":[],"url":"https://www.drupal.org/sa-core-2022-005"},{"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://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://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/79593?format=json","purl":"pkg:npm/ckeditor@4.16.0","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor@4.16.0"},{"url":"http://public2.vulnerablecode.io/api/packages/61015?format=json","purl":"pkg:npm/ckeditor@4.18.0","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor@4.18.0"}],"aliases":["CVE-2021-26271","CVE-2022-24729","GHSA-f6rf-9m92-x2hh","GHSA-jv4c-7jqq-m34x"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-2nbt-ysxu-d3bu"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/51417?format=json","vulnerability_id":"VCID-mevr-4wd2-gkch","summary":"Inclusion of Functionality from Untrusted Control Sphere in CKEditor 4\nIt was possible to execute a ReDoS-type attack inside CKEditor 4 before\n4.16 by persuading a victim to paste crafted URL-like text into the editor, and\nthen 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":"0.66381","published_at":"2026-06-04T12:55:00Z"}],"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://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://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://nvd.nist.gov/vuln/detail/CVE-2021-26272","reference_id":"CVE-2021-26272","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"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/79593?format=json","purl":"pkg:npm/ckeditor@4.16.0","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor@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-mevr-4wd2-gkch"}],"fixing_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/40440?format=json","vulnerability_id":"VCID-qxab-9uwr-yqhv","summary":"Cross-site 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":"0.84092","published_at":"2026-06-04T12:55:00Z"}],"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://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-bin/bugreport.cgi?bug=1015217"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2018-17960","reference_id":"CVE-2018-17960","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://nvd.nist.gov/vuln/detail/CVE-2018-17960"},{"reference_url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2018-17960.yaml","reference_id":"CVE-2018-17960.YAML","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://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2018-17960.yaml"},{"reference_url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2018-17960.yaml","reference_id":"CVE-2018-17960.YAML","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://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2018-17960.yaml"},{"reference_url":"https://github.com/advisories/GHSA-g68x-vvqq-pvw3","reference_id":"GHSA-g68x-vvqq-pvw3","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://github.com/advisories/GHSA-g68x-vvqq-pvw3"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/57026?format=json","purl":"pkg:npm/ckeditor@4.11.0","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-2nbt-ysxu-d3bu"},{"vulnerability":"VCID-mevr-4wd2-gkch"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor@4.11.0"}],"aliases":["CVE-2018-17960","GHSA-g68x-vvqq-pvw3"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-qxab-9uwr-yqhv"}],"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor@4.11.0"}