CVE-2026-116687
CKEditor: Cross-site scripting (XSS) in the engine package
CVSS Score
3.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | ckeditor |
| Product | ckeditor5 |
| Published | Oct 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected Versions
ckeditor / ckeditor5
>= 29.0.0, < 47.7.4 >= 48.0.0, < 48.5.1
References
github.com: https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-v6mg-96c6-gmpq github.com: https://github.com/ckeditor/ckeditor5/commit/4d9c5bb34f63cd956d15ccafbe584e14280c86a0 github.com: https://github.com/ckeditor/ckeditor5/commit/a750e38635db6a18c5b11599c09f4fd702850423 github.com: https://github.com/ckeditor/ckeditor5/releases/tag/v47.7.4 github.com: https://github.com/ckeditor/ckeditor5/releases/tag/v48.5.1