CVE-2026-10820: Unknown Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content

High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days.

The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content WordPress plugin before 4.16.17 does not verify that the user performing a subscription action owns the targeted subscription, allowing any authenticated user (Subscriber+) to cancel other users' active subscriptions via an Insecure Direct Object Reference.

Affected products

• Unknown Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content: before 4.16.17 (fixed in 4.16.17)

Published 2026-06-27. Last modified 2026-06-29.