CVE-2026-3423: Smub Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More

Medium severity, CVSS 6.4. EPSS: 0.3% chance of exploitation in the next 30 days.

The Envira Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the gallery 'description' configuration field in all versions up to, and including, 1.12.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses a page displaying the gallery with a description enabled.

Affected products

• Smub Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More: up to and including 1.12.4

Published 2026-08-28. Last modified 2026-08-28.