CVE-2026-74920: Unknown Document Gallery

High severity, CVSS 7.1. EPSS: 0.1% chance of exploitation in the next 30 days.

The Document Gallery WordPress plugin through 5.1.1 does not properly sanitise and escape user input before reflecting it inside an HTML attribute in the response of an unauthenticated AJAX action, leading to a Reflected Cross-Site Scripting vulnerability which can be exploited against any visitor, including a logged-in administrator.

Affected products

• Unknown Document Gallery: up to and including 5.1.1

Published 2026-10-15. Last modified 2026-10-15.