What is GHSA-j3mm-wmfm-mwvh?

GHSA-j3mm-wmfm-mwvh is a security advisory published by GitHub Security Advisories with Medium severity. Cross-site scripting (XSS) in the CKEditor 5 real-time collaboration package

Which CVE IDs does GHSA-j3mm-wmfm-mwvh cover?

GHSA-j3mm-wmfm-mwvh covers the following CVE IDs: CVE-2025-25299. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by GHSA-j3mm-wmfm-mwvh?

GHSA-j3mm-wmfm-mwvh affects 2 products, including: npm/@ckeditor/ckeditor5-real-time-collaboration:\u003e= 41.3.0, \u003c= 44.2.0; npm/ckeditor5-premium-features:\u003e= 42.0.0, \u003c 44.2.0.

GHSA-j3mm-wmfm-mwvhMedium

Cross-site scripting (XSS) in the CKEditor 5 real-time collaboration package

Vendor

GitHub Security Advisories

Published

February 20, 2025

Last Modified

February 20, 2025

🔗 CVE IDs covered (1)

CVE-2025-25299 →

📋 Description

Impact

During a recent internal audit, we identified a Cross-Site Scripting (XSS) vulnerability in the CKEditor 5 real-time collaboration package. This vulnerability can lead to unauthorized JavaScript code execution and affects user markers, which represent users' positions within the document.

This vulnerability affects only installations with Real-time collaborative editing enabled.

Patches

The problem has been recognized and patched. The fix will be available in version 44.2.1 (and above).

For more information

Email us at [email protected] if you have any questions or comments about this advisory.

🎯 Affected products2

npm/@ckeditor/ckeditor5-real-time-collaboration:>= 41.3.0, <= 44.2.0
npm/ckeditor5-premium-features:>= 42.0.0, < 44.2.0