DRUPAL-CONTRIB-2026-299

    Dashboard / Vulnerabilities / DRUPAL-CONTRIB-2026-299

    DRUPAL-CONTRIB-2026-299

    Published: 4 Nov 2026Last Modified: 4 Nov 2026

    Summary:

    Details: 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.

    References: https://www.drupal.org/sa-contrib-2026-299

    Affected packages

    Package

    Name: drupal/highlight_js

    Purl: pkg:composer/drupal/highlight_js?repository_url=https:%2F%2Fpackages.drupal.org%2F8

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.3.1

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    DRUPAL-CONTRIB-2026-299 | CVE-DB