CVEvulnerability
CVE-2026-116688
8.1 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-10-27
- Last modified
- 2026-10-28
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-79
Description
CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. From 45.0.0 until 47.7.4 and 48.5.1, the engine uses a vulnerable es-toolkit version whose prototype-pollution behavior can be reached while CKEditor processes incoming style attribute values. Crafted editor content can thereby cause unauthorized JavaScript execution in the browser. This issue is fixed in versions 47.7.4 and 48.5.1.
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- 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 github.com
- https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-rh54-vffm-5fvp github.com