CVE-2026-11964

Affected software: User Registration & Membership WordPress plugin (prior to 5.2.2). Vulnerability: The plugin does not verify the authenticity of incoming payment-provider webhook notifications, enabling unauthenticated attackers to forge a payment-approved event. Impact: This can activate a pai...

CVE-2026-11964 User Registration & Membership < 5.2.2 - Unauthenticated PayPal Webhook Signature Verification Bypass Leading to Membership Activation

The User Registration & Membership WordPress plugin before 5.2.2 does not verify the authenticity of incoming payment-provider webhook notifications before acting on them, allowing unauthenticated attackers to forge a payment-approved event and activate a paid membership subscription without...

EUVD-2026-39639

The User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder plugin for WordPress is vulnerable to unauthorized modification of data due to missing validation checks in the confirmpayment function in all...

CVE-2026-1869

The User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder plugin for WordPress is vulnerable to unauthorized modification of data due to missing validation checks in the confirmpayment function in all...

CVE-2026-1869 User Registration & Membership <= 5.2.0 - Missing Authorization to Unauthenticated Payment Bypass

The User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder plugin for WordPress is vulnerable to unauthorized modification of data due to missing validation checks in the confirmpayment function in all...