User Registration & Membership PRO – Custom Registration Form, Login Form, and User Profile <= 5.1.3 - Cross-Site Request Forgery to User Deletion

Vulnerability Description

The User Registration & Membership – Custom Registration Form, Login Form, and User Profile plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 5.1.3. This is due to missing or incorrect nonce validation on the user_registration_pro_delete_account() function. This makes it possible for unauthenticated attackers to force delete users, including administrators, via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

References

• https://www.wordfence.com/threat-intel/vulnerabilities/id/4616b609-e8dc-4004-a5b7-2de3e83719be?source=cve
• https://wpuserregistration.com/changelog/