User Registration & Membership Plugin Vulnerability in WordPress
CVE-2026-6145

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder
Vendor
CVE Published:
14 May 2026

What is CVE-2026-6145?

The User Registration & Membership plugin for WordPress is susceptible to a Missing Authorization vulnerability. This flaw arises from the is_admin_creation_process() method, which solely depends on the action=createuser parameter present in the $_REQUEST superglobal. It lacks any authentication or capability checks, allowing unauthenticated attackers to bypass the admin approval process when creating new accounts through a fallback submission path. This security oversight makes it essential for users to apply the latest updates and review their security settings to prevent unauthorized access.

Affected Version(s)

User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder 0 <= 5.1.5

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset/3516468/user...

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Anthony Cihan
.