CVE-2026-85677: Unknown Gutenverse News

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

The Gutenverse News WordPress plugin before 3.3.3 does not restrict the extra HTML it adds to WordPress's allowed elements to the context it is meant for, applying the same relaxed list to every sanitisation context including untrusted comments, allowing unauthenticated users to store JavaScript that will execute in the browser of any administrator who reviews the comment queue, and of any visitor to the post once the comment is approved.

Affected products

• Unknown Gutenverse News: before 3.3.3 (fixed in 3.3.3)

Published 2026-09-11. Last modified 2026-09-11.