CVE-2025-4334 Simple User Registration <= 6.3 - Unauthenticated Privilege Escalation
Unauthenticated attackers can register as administrators due to insufficient restrictions on user meta values during registration.
- 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-2025-4334?
CVE-2025-4334 is a critical vulnerability in nmedia Simple User Registration, published on 26 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Simple User Registration plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 6.3. This is due to insufficient restrictions on user meta values that can be supplied during registration. This makes it possible for unauthenticated attackers to register as an administrator.
Weakness: CWE-269
Which versions are affected by CVE-2025-4334?
It affects 1 product.
Products include Najeebmedia Memberhero.
How do I fix CVE-2025-4334?
No fix has been published for CVE-2025-4334 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-4334 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-4334 exists.
Public exploit code: 1 Nuclei template and 3 proofs of concept on GitHub.
Other vulnerabilities in nmedia Simple User Registration
Sources
Also known as GHSA-6hwf-c64w-jxc6.