CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. From 29.0.0 until 47.7.4 and 48.5.1, specially crafted markup can trigger cross-site scripting when General HTML Support is enabled and specifically configured to allow object content. Processing that content can execute attacker-controlled JavaScript in a browser context isolated from the origin of the application embedding the editor. This issue is fixed in versions 47.7.4 and 48.5.1.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 4
- StatusPublished → Awaiting AnalysisNVD modified 2026-10-28 15:21
- StatusReceived → PublishedNVD modified 2026-10-27 19:33
- StatusPublished → ReceivedNVD modified 2026-10-27 20:17
- First seenCVSS 3.1 · ckeditorNVD modified 2026-10-27 19:33
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 5
- https://github.com/ckeditor/ckeditor5/commit/4d9c5bb34f63cd956d15ccafbe584e14280c86a0
- https://github.com/ckeditor/ckeditor5/commit/a750e38635db6a18c5b11599c09f4fd702850423
- https://github.com/ckeditor/ckeditor5/releases/tag/v47.7.4
- https://github.com/ckeditor/ckeditor5/releases/tag/v48.5.1
- https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-v6mg-96c6-gmpq