CVE-2026-12426: Supercleanse Members – Membership & User Role Editor Plugin

Medium severity, CVSS 5.3. EPSS: 0.5% chance of exploitation in the next 30 days.

The Members – Membership & User Role Editor Plugin plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.2.22 via the members_filter_protected_posts_for_rest. This makes it possible for unauthenticated attackers to extract determine the existence and exact count of access-restricted posts, and use per-page pagination as a boolean oracle to infer keywords and content contained within those hidden restricted posts.

Affected products

• Supercleanse Members – Membership & User Role Editor Plugin: up to and including 3.2.22

Published 2026-07-11. Last modified 2026-07-14.