Cross-site scripting (XSS) in the clipboard package

Description

During a recent internal audit, we identified a Cross-Site Scripting (XSS) vulnerability in the CKEditor 5 clipboard package.

Recommendation

Update the @ckeditor/ckeditor5-clipboard package to the latest compatible version. Followings are version details:

• Affected version(s): >= 40.0.0, < 43.1.1
• Patched version(s): 43.1.1

References

• GHSA-rgg8-g5x8-wr9v
• CVE-2024-45613
• CWE-79
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• CKEditor 5 cross-site scripting (XSS) vulnerability in the clipboard package - CVE-2025-58064
• Prototype Pollution in lodash (GHSA-4xc9-xhrj-v574) - CVE-2018-16487
• jquery-validation vulnerable to Cross-site Scripting - CVE-2025-3573
• @mozilla/readability Denial of Service through Regex - CVE-2025-2792

Tags:

npm

@ckeditor/ckeditor5-clipboard