CVEvulnerability
CVE-2026-28343
6.1 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2026-03-05
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- CVSS 3.1 ([email protected])
- 6.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79
Description
CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. Starting in version 29.0.0 and prior to version 47.6.0, a cross-site scripting (XSS) vulnerability has been discovered in the General HTML Support feature. This vulnerability could be triggered by inserting specially crafted markup, leading to unauthorized JavaScript code execution, if the editor instance used an unsafe General HTML Support configuration. This issue has been patched in version 47.6.0.
Affected configurations
• ckeditor ckeditor5 (< 47.6.0)
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://github.com/ckeditor/ckeditor5/releases/tag/v29.0.0 github.com
- https://github.com/ckeditor/ckeditor5/releases/tag/v47.6.0 Release Notes
- https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-jrqm-vmqc-gm93 Mitigation, Vendor Advisory