The User Registration & Membership plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 4.1.1. This is due to insufficient restrictions on role type in the 'prepare_members_data()' function. This makes it possible for unauthenticated attackers to create new user accounts with the 'administrator'' role.
CVE-2025-2563 is a critical severity with CVSS 9.8 Privilege Escalation issue affecting the Plugin User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder. It affects Versions up to 4.1.1 and is fixed in 4.1.2.
CVE-2025-2563 is tracked for the Plugin User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder as critical severity with CVSS 9.8. The affected range is Versions up to 4.1.1. Update User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder to 4.1.2 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
user-registration
View on wordpress.org
|
| CVE | CVE-2025-2563 |
| Patched Versions |
4.1.2
|
| Affected Versions |
Versions up to 4.1.1
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
User Registration <= 3.0.2 - Authenticated (Subscriber+) Arbitrary File Upload
User Registration & Membership <= 5.1.2 - Unauthenticated Privilege Escalation via Membership Registration
User Registration – Custom Registration Form, Login Form, and User Profile WordPress Plugin <= 3.1.5 - Missing Authorization to Authenticated (Subscriber+) Privilege Escalation
User Registration <= 3.0.1 - Authenticated (Subscriber+) PHP Object Injection
User Registration <= 2.2.4 - Authenticated (Subscriber+) Arbitrary File Upload
User Registration & Membership <= 5.1.2 - Authentication Bypass
User Registration & Membership <= 4.1.2 - Authentication Bypass
User Registration <= 2.3.2.1 - PHP Object Injection
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