CVE-2025-25299 (GCVE-0-2025-25299)
Vulnerability from cvelistv5
Published
2025-02-20 19:23
Modified
2025-02-20 19:47
Severity ?
2.3 (Low) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
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)
Summary
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.
References
Impacted products
Vendor Product Version
ckeditor ckeditor5 Version: @ckeditor/ckeditor5-real-time-collaboration: >= 41.3.0, < 44.2.1
Version: ckeditor5-premium-features: >= 42.0.0, < 44.2.1
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