CVE-2026-8422: Mr Mat Remove Meta Boxes Per User Role

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

The Remove meta boxes per user role plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.01. This is due to missing or incorrect nonce validation on the 'remove-meta-boxes-per-user-role' page. This makes it possible for unauthenticated attackers to modify or reset the plugin's per-role meta box visibility settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected products

• Mr Mat Remove Meta Boxes Per User Role: up to and including 1.01

Published 2026-06-02. Last modified 2026-07-22.