CVE-2025-58064 – ckeditor5

Package

Manager: npm
Name: ckeditor5
Vulnerable Version: >=46.0.0 <46.0.3 || >=44.2.0 <45.2.2

Severity

Level: Low

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N/E:U/RL:O/RC:C

CVSS v4.0: 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

EPSS: 0.00077 pctl0.23602

Details

CKEditor 5 cross-site scripting (XSS) vulnerability in the clipboard package ### 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.

Metadata

Created: 2025-09-03T18:03:20Z
Modified: 2025-09-04T13:51:52Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/09/GHSA-x9gp-vjh6-3wv6/GHSA-x9gp-vjh6-3wv6.json
CWE IDs: ["CWE-79"]
Alternative ID: GHSA-x9gp-vjh6-3wv6
Finding: F008
Auto approve: 1