CVE-2026-1492 User Registration & Membership <= 5.1.2 - Unauthenticated Privilege Escalation via Membership Registration

Critical 9.8 Published Updated

Unauthenticated attackers can create administrator accounts by supplying a role value during membership registration due to missing server-side allowlist enforcement.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-1492?

CVE-2026-1492 is a critical vulnerability in wpeverest User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder, published on 3 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The User Registration & Membership – Custom Registration Form Builder, Custom Login Form, User Profile, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to improper privilege management in all versions up to, and including, 5.1.2. This is due to the plugin accepting a user-supplied role during membership registration without properly enforcing a server-side allowlist. This makes it possible for unauthenticated attackers to create administrator accounts by supplying a role value during membership registration.

Weakness: CWE-269

Which versions are affected by CVE-2026-1492?

How do I fix CVE-2026-1492?

No fix has been published for CVE-2026-1492 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-1492 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-1492 exists.

Public exploit code: 1 Nuclei template and 3 proofs of concept on GitHub.

Sources

Also known as GHSA-6ghq-4j9p-h2v9.

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