CVE-2026-12108

Name of the Vulnerable Software and Affected Versions Highlighting Code Block versions prior to 2.2.1

Description Stored Cross-Site Scripting occurs in the admin settings due to insufficient input sanitization and output escaping. Authenticated attackers with administrator-level permissions or higher can inject arbitrary web scripts into pages. These scripts execute when a user accesses the affected page. This issue specifically impacts multi-site installations and environments where unfiltered html has been disabled.

Recommendations Update to a version newer than 2.2.0.