User Registration – Custom Registration Form, Login Form, and User Profile WordPress Plugin, CVE-2026-7651

CVE, Research URL: CVE-2026-7651
Home page URL: Security reports for User Registration – Custom Registration Form, Login Form, and User Profile WordPress Plugin
Application: User Registration – Custom Registration Form, Login Form, and User Profile WordPress Plugin
Published on: May 28, 2026
Research Description: The User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.5. This is due to missing ownership validation on a user-controlled attachment ID, allowing the plugin to store and subsequently delete arbitrary media attachments without verifying that the referenced attachment belongs to the requesting user. This makes it possible for authenticated attackers, with subscriber-level access and above, to permanently delete arbitrary media attachments uploaded by any other user, including administrators.
Affected versions: max 5.1.6.
Status: vulnerable

User Registration &#8211; Custom Registration Form, Login Form, and User Profile WordPress Plugin, CVE-2026-7651