CVE-2023-0441: Simplygallery Simply Gallery Blocks With Lightbox

High severity, CVSS 8.1. EPSS: 0.7% chance of exploitation in the next 30 days.

The Gallery Blocks with Lightbox WordPress plugin before 3.0.8 has an AJAX endpoint that can be accessed by any authenticated users, such as subscriber. The callback function allows numerous actions, the most serious one being reading and updating the WordPress options which could be used to enable registration with a default administrator user role.

Affected products

• Simplygallery Simply Gallery Blocks With Lightbox: before 3.0.8 (fixed in 3.0.8)

Published 2023-03-27. Last modified 2026-06-17.