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.
[POC] CVE-2025-4334 — CVE-2025-4334
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.
[POC] CVE-2025-4334 — CVE-2025-4334
Proof-of-concept exploit for CVE-2025-4334, a privilege escalation vulnerability in the Simple User Registration WordPress plugin (<= 6.3), allowing unauthenticated attackers to create administrator accounts.
[POC] CVE-2025-4334 — CVE-2025-4334
Simple User Registration <= 6.3 - Unauthenticated Privilege Escalation
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Get alerted for CVEs like this
Register your stack and get notified within minutes when a matching CVE drops.
Start monitoring free