CVE-2026-19804

The s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 260814 via the 'firstname' parameter parameter. This is due to insufficient...

CVE-2026-19804 s2Member <= 260814 - Unauthenticated Remote Code Execution via 'first_name' Parameter in PayPal Proxy Return

The s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 260814 via the 'firstname' parameter parameter. This is due to insufficient...

CVE-2026-19804

The s2Member plugin for WordPress (versions up to and including 260814 ) is vulnerable to Remote Code Execution (RCE) . The root cause is insufficient sanitization of the first_name parameter using esc_refs(), which fails to strip PHP tags before they are substituted into an eval'd Signup Trackin...