{"id":"CVE-2025-58064","aliases":["EUVD-2025-26646","GHSA-x9gp-vjh6-3wv6"],"status":"published","title":"CKEditor is susceptible to Cross-Site Scripting (XSS) through its clipboard package","description":"CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. ckeditor5 and ckeditor5-clipboard versions 46.0.0 through 46.0.2 and 44.2.0 through 45.2.1 contain a Cross-Site Scripting (XSS) vulnerability. Ability to exploit 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 affects installations where the editor configuration meets one of the following criteria: the HTML embed plugin is enabled, or there is a custom plugin introducing an editable element where view RawElement is enabled. This issue is fixed in versions 45.2.2 and 46.0.3 of both ckeditor5 and ckeditor5-clipboard.","severity":{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00417,"percentile":0.36502,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2025-09-03T18:03:20Z","modified":"2026-10-28T02:30:24Z","fixes":[{"ecosystem":"npm","package":"ckeditor5","fixed_in":["46.0.3","45.2.2"],"sources":["ghsa","osv"]},{"ecosystem":"npm","package":"@ckeditor/ckeditor5-clipboard","fixed_in":["45.2.2","46.0.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"ckeditor5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"46.0.0"},{"fixed":"46.0.3"}]}]},{"source":"ghsa","ecosystem":"npm","package":"@ckeditor/ckeditor5-clipboard","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"44.2.0"},{"fixed":"45.2.2"}]}]},{"source":"ghsa","ecosystem":"npm","package":"ckeditor5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"44.2.0"},{"fixed":"45.2.2"}]}]},{"source":"ghsa","ecosystem":"npm","package":"@ckeditor/ckeditor5-clipboard","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"46.0.0"},{"fixed":"46.0.3"}]}]},{"source":"osv","ecosystem":"npm","package":"ckeditor5","ranges":[{"type":"SEMVER","events":[{"introduced":"46.0.0"},{"fixed":"46.0.3"}]}]},{"source":"osv","ecosystem":"npm","package":"@ckeditor/ckeditor5-clipboard","ranges":[{"type":"SEMVER","events":[{"introduced":"44.2.0"},{"fixed":"45.2.2"}]}]},{"source":"osv","ecosystem":"npm","package":"ckeditor5","ranges":[{"type":"SEMVER","events":[{"introduced":"44.2.0"},{"fixed":"45.2.2"}]}]},{"source":"osv","ecosystem":"npm","package":"@ckeditor/ckeditor5-clipboard","ranges":[{"type":"SEMVER","events":[{"introduced":"46.0.0"},{"fixed":"46.0.3"}]}]}],"products":[{"vendor":"ckeditor","product":"ckeditor5"}],"references":[{"url":"https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-x9gp-vjh6-3wv6","tags":["x_refsource_CONFIRM","advisory","web"]},{"url":"https://github.com/ckeditor/ckeditor5/commit/b210e90c6cf84e662ef6c7daf93a92355a961bf2","tags":["x_refsource_MISC","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-58064","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-x9gp-vjh6-3wv6"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/58xxx/CVE-2025-58064.json","tags":["advisory"]},{"url":"https://github.com/ckeditor/ckeditor5","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-58064","title":"CKEditor is susceptible to Cross-Site Scripting (XSS) through its clipboard package","description":"CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. ckeditor5 and ckeditor5-clipboard versions 46.0.0 through 46.0.2 and 44.2.0 through 45.2.1 contain a Cross-Site Scripting (XSS) vulnerability. Ability to exploit 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 affects installations where the editor configuration meets one of the following criteria: the HTML embed plugin is enabled, or there is a custom plugin introducing an editable element where view RawElement is enabled. This issue is fixed in versions 45.2.2 and 46.0.3 of both ckeditor5 and ckeditor5-clipboard.","status":"published","published":"2025-09-03T22:02:53.296Z","modified":"2025-09-04T20:03:46.927Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N","level":"low","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:37.351404Z"}],"euvd":[{"id":"EUVD-2025-26646","description":"CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. ckeditor5 and ckeditor5-clipboard versions 46.0.0 through 46.0.2 and 44.2.0 through 45.2.1 contain a Cross-Site Scripting (XSS) vulnerability. Ability to exploit 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 affects installations where the editor configuration meets one of the following criteria: the HTML embed plugin is enabled, or there is a custom plugin introducing an editable element where view RawElement is enabled. This issue is fixed in versions 45.2.2 and 46.0.3 of both ckeditor5 and ckeditor5-clipboard.","status":"published","published":"2025-09-03T22:02:53Z","modified":"2025-09-04T20:03:46Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N","level":"low"}],"updated_at":"2026-11-02T20:31:46.9428Z"}],"ghsa":[{"id":"GHSA-x9gp-vjh6-3wv6","title":"CKEditor 5 cross-site scripting (XSS) vulnerability in the clipboard package","description":"### Impact\nA Cross-Site Scripting (XSS) vulnerability has been discovered 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 one of the following criteria:\n- [HTML embed plugin](https://ckeditor.com/docs/ckeditor5/latest/features/html/html-embed.html) is enabled\n- Custom plugin introducing editable element which implements view [`RawElement`](https://ckeditor.com/docs/ckeditor5/latest/api/module_engine_view_rawelement-ViewRawElement.html) is enabled\n\n### Patches\nThe problem has been recognized and patched. The fix will be available in version 46.0.3 (and above), and explicitly in version 45.2.2.\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.","status":"published","published":"2025-09-03T18:03:20Z","modified":"2025-09-04T13:51:53Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N","level":"low"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:38:55.953734Z"}],"nvd":[{"id":"CVE-2025-58064","description":"CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. ckeditor5 and ckeditor5-clipboard versions 46.0.0 through 46.0.2 and 44.2.0 through 45.2.1 contain a Cross-Site Scripting (XSS) vulnerability. Ability to exploit 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 affects installations where the editor configuration meets one of the following criteria: the HTML embed plugin is enabled, or there is a custom plugin introducing an editable element where view RawElement is enabled. This issue is fixed in versions 45.2.2 and 46.0.3 of both ckeditor5 and ckeditor5-clipboard.","status":"published","published":"2025-09-04T10:42:32.343Z","modified":"2026-06-17T09:43:51.8Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/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":"low","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:11:27.145738Z"}],"osv":[{"id":"CVE-2025-58064","title":"CKEditor is susceptible to Cross-Site Scripting (XSS) through its clipboard package","description":"CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. ckeditor5 and ckeditor5-clipboard versions 46.0.0 through 46.0.2 and 44.2.0 through 45.2.1 contain a Cross-Site Scripting (XSS) vulnerability. Ability to exploit 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 affects installations where the editor configuration meets one of the following criteria: the HTML embed plugin is enabled, or there is a custom plugin introducing an editable element where view RawElement is enabled. This issue is fixed in versions 45.2.2 and 46.0.3 of both ckeditor5 and ckeditor5-clipboard.","status":"published","published":"2025-09-03T22:02:53.296Z","modified":"2026-10-28T02:30:24.410770467Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N","level":"low"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:51.190588Z"},{"id":"GHSA-x9gp-vjh6-3wv6","title":"CKEditor 5 cross-site scripting (XSS) vulnerability in the clipboard package","description":"### Impact\nA Cross-Site Scripting (XSS) vulnerability has been discovered 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 one of the following criteria:\n- [HTML embed plugin](https://ckeditor.com/docs/ckeditor5/latest/features/html/html-embed.html) is enabled\n- Custom plugin introducing editable element which implements view [`RawElement`](https://ckeditor.com/docs/ckeditor5/latest/api/module_engine_view_rawelement-ViewRawElement.html) is enabled\n\n### Patches\nThe problem has been recognized and patched. The fix will be available in version 46.0.3 (and above), and explicitly in version 45.2.2.\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.","status":"published","published":"2025-09-03T18:03:20Z","modified":"2025-09-04T13:51:52Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N","level":"low"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:59.835583Z"}]}}