Project: 
Highlight Js syntax highlighter
Project machine name: 
highlight_js
Date: 
2026-November-04
Security risk: 
Critical 16 ∕ 25 AC:Basic/A:None/CI:Some/II:Some/E:Theoretical/TD:All
Vulnerability: 
Cross-site scripting
Affected versions: 
<1.3.1
CVE IDs: 
CVE-2026-122068
Description: 

This module enables you to add syntax-highlighted code snippets to content using CKEditor 5.

The module doesn't sufficiently validate input passed to its CKEditor 5 preview endpoint, leading to a reflected cross-site scripting (XSS) vulnerability.

Solution: 

Install the latest version:

Reported By: 
Fixed By: 
Coordinated By: