CVE-2025-25299

CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. During a recent internal audit, a Cross-Site Scripting (XSS) vulnerability was discovered in the CKEditor 5 real-time collaboration package. This vulnerability affects user markers, which represent users' positions within the document. It can lead to unauthorized JavaScript code execution, which might happen with a very specific editor and token endpoint configuration. This vulnerability affects only installations with Real-time collaborative editing enabled. The problem has been recognized and patched. The fix is available in version 44.2.1 (and above). Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS

No CVSS.

References

Link	Resource
https://ckeditor.com/docs/ckeditor5/latest/features/collaboration/real-time-collaboration/real-time-collaboration.html
https://github.com/ckeditor/ckeditor5/releases/tag/v44.2.1
https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-j3mm-wmfm-mwvh

Configurations

No configuration.

History

20 Feb 2025, 20:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-02-20 20:15

Updated : 2025-02-20 20:15

NVD link : CVE-2025-25299

Mitre link : CVE-2025-25299

CVE.ORG link : CVE-2025-25299

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-80

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

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