{"id":"CVE-2024-45613","aliases":["EUVD-2024-2865","GHSA-rgg8-g5x8-wr9v","UBUNTU-CVE-2024-45613"],"status":"published","title":"CKEditor 5 has Cross-site Scripting vulnerability in the clipboard package","description":"CKEditor 5 is a JavaScript rich-text editor. Starting in version 40.0.0 and prior to version 43.1.1, a Cross-Site Scripting (XSS) vulnerability is present in the CKEditor 5 clipboard package. This vulnerability could be triggered by a specific user action, leading to unauthorized JavaScript code execution, if the attacker managed to insert a malicious content into the editor, which might happen with a very specific editor configuration. This vulnerability only affects installations where the Block Toolbar plugin is enabled and either the General HTML Support (with a configuration that permits unsafe markup) or the HTML Embed plugin is also enabled. A fix for the problem is available in version 43.1.1. As a workaround, one may disable the block toolbar plugin.","severity":{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00524,"percentile":0.44985,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2024-09-25T13:27:03Z","modified":"2026-10-28T02:30:39Z","fixes":[{"ecosystem":"npm","package":"ckeditor5","fixed_in":["43.1.1"],"sources":["ghsa","osv"]},{"ecosystem":"npm","package":"@ckeditor/ckeditor5-clipboard","fixed_in":["43.1.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"ckeditor5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"40.0.0"},{"fixed":"43.1.1"}]}]},{"source":"ghsa","ecosystem":"npm","package":"@ckeditor/ckeditor5-clipboard","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"40.0.0"},{"fixed":"43.1.1"}]}]},{"source":"osv","ecosystem":"npm","package":"ckeditor5","ranges":[{"type":"SEMVER","events":[{"introduced":"40.0.0"},{"fixed":"43.1.1"}]}]},{"source":"osv","ecosystem":"npm","package":"@ckeditor/ckeditor5-clipboard","ranges":[{"type":"SEMVER","events":[{"introduced":"40.0.0"},{"fixed":"43.1.1"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"ldap-account-manager","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.9-1","5.1-1","5.2-1","5.2-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"request-tracker4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2.11-2","4.2.12-3","4.2.12-4","4.2.12-5"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"ckeditor3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.6.1+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"ldap-account-manager","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.7-1","6.1-1","6.2-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"request-tracker4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.1-5","4.4.2-1","4.4.2-2","4.4.2-2ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"ckeditor3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.6.1+dfsg-3","3.6.6.1+dfsg-4"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"ldap-account-manager","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.7-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"request-tracker4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.3-2","4.4.3-2+deb10u3build0.20.04.1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"ckeditor3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.6.1+dfsg-7"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"ldap-account-manager","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.5-1","7.7-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"request-tracker4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.4+dfsg-2ubuntu1","4.4.4+dfsg-2ubuntu1.22.04.1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"ckeditor3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.6.1+dfsg-7"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"ldap-account-manager","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.3-1","8.5-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"request-tracker4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.4+dfsg-2ubuntu1","4.4.4+dfsg-2ubuntu2","4.4.7+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"ldap-account-manager","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.0-1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"request-tracker4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.7+dfsg-4syncable1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"ldap-account-manager","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.0-1","9.0-1build1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"request-tracker4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.7+dfsg-4syncable1"]}],"products":[{"vendor":"ckeditor","product":"ckeditor5"}],"references":[{"url":"https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-rgg8-g5x8-wr9v","tags":["x_refsource_CONFIRM","Third Party Advisory","advisory","web","report"]},{"url":"https://github.com/ckeditor/ckeditor5/releases/tag/v43.1.1","tags":["x_refsource_MISC","Release Notes","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-45613","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-rgg8-g5x8-wr9v"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45613.json","tags":["advisory"]},{"url":"https://github.com/ckeditor/ckeditor5","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2024-45613","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-45613","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2024-45613","title":"CKEditor 5 has Cross-site Scripting vulnerability in the clipboard package","description":"CKEditor 5 is a JavaScript rich-text editor. Starting in version 40.0.0 and prior to version 43.1.1, a Cross-Site Scripting (XSS) vulnerability is present in the CKEditor 5 clipboard package. This vulnerability could be triggered by a specific user action, leading to unauthorized JavaScript code execution, if the attacker managed to insert a malicious content into the editor, which might happen with a very specific editor configuration. This vulnerability only affects installations where the Block Toolbar plugin is enabled and either the General HTML Support (with a configuration that permits unsafe markup) or the HTML Embed plugin is also enabled. A fix for the problem is available in version 43.1.1. As a workaround, one may disable the block toolbar plugin.","status":"published","published":"2024-09-25T13:27:03.546Z","modified":"2024-10-01T21:20:44.633Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:34:08.16279Z"}],"euvd":[{"id":"EUVD-2024-2865","description":"CKEditor 5 is a JavaScript rich-text editor. Starting in version 40.0.0 and prior to version 43.1.1, a Cross-Site Scripting (XSS) vulnerability is present in the CKEditor 5 clipboard package. This vulnerability could be triggered by a specific user action, leading to unauthorized JavaScript code execution, if the attacker managed to insert a malicious content into the editor, which might happen with a very specific editor configuration. This vulnerability only affects installations where the Block Toolbar plugin is enabled and either the General HTML Support (with a configuration that permits unsafe markup) or the HTML Embed plugin is also enabled. A fix for the problem is available in version 43.1.1. As a workaround, one may disable the block toolbar plugin.","status":"published","published":"2024-09-25T13:27:03Z","modified":"2024-10-01T21:20:44Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"updated_at":"2026-11-03T00:27:59.473662Z"}],"ghsa":[{"id":"GHSA-rgg8-g5x8-wr9v","title":"Cross-site scripting (XSS) in the clipboard package","description":"### Impact\nDuring a recent internal audit, we identified a Cross-Site Scripting (XSS) vulnerability in the CKEditor 5 clipboard package. This vulnerability could be triggered by a specific user action, leading to unauthorized JavaScript code execution, if the attacker managed to insert a malicious content into the editor, which might happen with a very specific editor configuration.\n\nThis vulnerability affects **only** installations where the editor configuration meets the following criteria:\n\n1. The [**Block Toolbar**](https://ckeditor.com/docs/ckeditor5/latest/getting-started/setup/toolbar.html#block-toolbar) plugin is enabled.\n1. One of the following plugins is also enabled:\n    - [**General HTML Support**](https://ckeditor.com/docs/ckeditor5/latest/features/html/general-html-support.html) with a configuration that permits unsafe markup.\n    - [**HTML Embed**](https://ckeditor.com/docs/ckeditor5/latest/features/html/html-embed.html).\n\n### Patches\nThe problem has been recognized and patched. The fix will be available in version 43.1.1 (and above), and explicitly in version 41.3.2.\n\n### Workarounds\nIt's highly recommended to update to the version 43.1.1 or higher. However, if the update is not an option, we recommend disabling the block toolbar plugin.\n\n### For more information\nEmail us at [security@cksource.com](mailto:security@cksource.com) if you have any questions or comments about this advisory.\n","status":"published","published":"2024-09-25T18:13:35Z","modified":"2024-10-15T17:29:14Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"},{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:38:10.696798Z"}],"nvd":[{"id":"CVE-2024-45613","description":"CKEditor 5 is a JavaScript rich-text editor. Starting in version 40.0.0 and prior to version 43.1.1, a Cross-Site Scripting (XSS) vulnerability is present in the CKEditor 5 clipboard package. This vulnerability could be triggered by a specific user action, leading to unauthorized JavaScript code execution, if the attacker managed to insert a malicious content into the editor, which might happen with a very specific editor configuration. This vulnerability only affects installations where the Block Toolbar plugin is enabled and either the General HTML Support (with a configuration that permits unsafe markup) or the HTML Embed plugin is also enabled. A fix for the problem is available in version 43.1.1. As a workaround, one may disable the block toolbar plugin.","status":"published","published":"2024-09-25T14:15:05.303Z","modified":"2026-06-17T07:54:34.003Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:10:29.044588Z"}],"osv":[{"id":"CVE-2024-45613","title":"CKEditor 5 has Cross-site Scripting vulnerability in the clipboard package","description":"CKEditor 5 is a JavaScript rich-text editor. Starting in version 40.0.0 and prior to version 43.1.1, a Cross-Site Scripting (XSS) vulnerability is present in the CKEditor 5 clipboard package. This vulnerability could be triggered by a specific user action, leading to unauthorized JavaScript code execution, if the attacker managed to insert a malicious content into the editor, which might happen with a very specific editor configuration. This vulnerability only affects installations where the Block Toolbar plugin is enabled and either the General HTML Support (with a configuration that permits unsafe markup) or the HTML Embed plugin is also enabled. A fix for the problem is available in version 43.1.1. As a workaround, one may disable the block toolbar plugin.","status":"published","published":"2024-09-25T13:27:03.546Z","modified":"2026-10-28T02:30:39.200485948Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:42.790566Z"},{"id":"GHSA-rgg8-g5x8-wr9v","title":"Cross-site scripting (XSS) in the clipboard package","description":"### Impact\nDuring a recent internal audit, we identified a Cross-Site Scripting (XSS) vulnerability in the CKEditor 5 clipboard package. This vulnerability could be triggered by a specific user action, leading to unauthorized JavaScript code execution, if the attacker managed to insert a malicious content into the editor, which might happen with a very specific editor configuration.\n\nThis vulnerability affects **only** installations where the editor configuration meets the following criteria:\n\n1. The [**Block Toolbar**](https://ckeditor.com/docs/ckeditor5/latest/getting-started/setup/toolbar.html#block-toolbar) plugin is enabled.\n1. One of the following plugins is also enabled:\n    - [**General HTML Support**](https://ckeditor.com/docs/ckeditor5/latest/features/html/general-html-support.html) with a configuration that permits unsafe markup.\n    - [**HTML Embed**](https://ckeditor.com/docs/ckeditor5/latest/features/html/html-embed.html).\n\n### Patches\nThe problem has been recognized and patched. The fix will be available in version 43.1.1 (and above), and explicitly in version 41.3.2.\n\n### Workarounds\nIt's highly recommended to update to the version 43.1.1 or higher. However, if the update is not an option, we recommend disabling the block toolbar plugin.\n\n### For more information\nEmail us at [security@cksource.com](mailto:security@cksource.com) if you have any questions or comments about this advisory.\n","status":"published","published":"2024-09-25T18:13:35Z","modified":"2024-10-15T17:29:14Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","level":"high"},{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:55.877614Z"},{"id":"UBUNTU-CVE-2024-45613","description":"CKEditor 5 is a JavaScript rich-text editor. Starting in version 40.0.0 and prior to version 43.1.1, a Cross-Site Scripting (XSS) vulnerability is present in the CKEditor 5 clipboard package. This vulnerability could be triggered by a specific user action, leading to unauthorized JavaScript code execution, if the attacker managed to insert a malicious content into the editor, which might happen with a very specific editor configuration. This vulnerability only affects installations where the Block Toolbar plugin is enabled and either the General HTML Support (with a configuration that permits unsafe markup) or the HTML Embed plugin is also enabled. A fix for the problem is available in version 43.1.1. As a workaround, one may disable the block toolbar plugin.","status":"published","published":"2024-09-25T14:15:00Z","modified":"2026-05-20T16:18:30.472193321Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"},{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:55:02.636559Z"}]}}