CVE-2026-75823 WP User Frontend 3.5.29 - 4.3.11 - Unauthenticated Privilege Escalation via Registration Role Encryption
Unauthenticated attackers can escalate privileges to Editor by tampering with registration roles in WP User Frontend when sodium is missing.
- 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-2026-75823?
CVE-2026-75823 is a high-severity vulnerability in Unknown User Frontend, published on 30 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The User Frontend WordPress plugin before 4.3.12 does not prevent tampering with the role assigned by its registration form, allowing unauthenticated users to register with a higher privileged role, such as Editor.
This affects installations running a PHP build where the sodium extension is unavailable, and where a registration page has been configured. The administrator role cannot be obtained this way.
Weakness: CWE-269
Which versions are affected by CVE-2026-75823?
How do I fix CVE-2026-75823?
No fix has been published for CVE-2026-75823 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-75823 being exploited?
There is no known exploitation of CVE-2026-75823 in the wild and no public exploit code.
Sources
Also known as GHSA-x377-cjjw-xcfr.