CVE-2025-58064
lowpriority · track · 0EPSS 0.004 · 35 %ileEUUSEPSS · scored 2026-10-23
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.
cvss
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base score 0–10 · higher = more severe · hover a vector to decode
ssvc
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weaknesses
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affected products (6)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-x9gp-vjh6-3wv6CKEditor 5 cross-site scripting (XSS) vulnerability in the clipboard package2025-09-03ghsa · osvUS
### Impact A 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. This vulnerability affects **only** installations where the editor configuration meets one of the following criteria: - [HTML embed plugin](https://ckeditor.com/docs/ckeditor5/latest/features/html/html-embed.html) is enabled - Custom plugin introducing editable element which implements view [`RawElement`](https://ckeditor.com/docs/ckeditor5/latest/api/module_engine_view_rawelement-ViewRawElement.html) is enabled ### Patches The 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. ### For more information Email us at [security@cksource.com](mailto:security@cksource.com) if you have any questions or comments about this advisory.
also known as (3)
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sources
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references (7)
External citations — patches, advisories, analysis.
- https://github.com/ckeditor/ckeditor5/commit/b210e90c6cf84e662ef6c7daf93a92355a961bf2cnnvd
- https://github.com/ckeditor/ckeditor5/releasesPatchcnnvd
- https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-x9gp-vjh6-3wv6cnnvd
- https://github.com/ckeditor/ckeditor5/commit/b210e90c6cf84e662ef6c7daf93a92355a961bf2enisa_euvd
- https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-x9gp-vjh6-3wv6enisa_euvd
- https://github.com/ckeditor/ckeditor5/commit/b210e90c6cf84e662ef6c7daf93a92355a961bf2nvd
- https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-x9gp-vjh6-3wv6nvd
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