CVE-2026-106597 WordPress User Registration plugin <= 5.2.8 - Broken Access Control vulnerability
Attackers can bypass access controls in the User Registration plugin to perform unauthorized actions due to missing authorization checks.
- 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-2026-106597?
CVE-2026-106597 is a medium-severity missing authorization vulnerability in ThemeGrill User Registration, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Missing Authorization vulnerability in ThemeGrill User Registration user-registration allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects User Registration: from n/a through 5.2.8.
Weakness: CWE-862
Which versions are affected by CVE-2026-106597?
How do I fix CVE-2026-106597?
No fix has been published for CVE-2026-106597 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-106597 being exploited?
There is no known exploitation of CVE-2026-106597 in the wild and no public exploit code.
Sources
Also known as GHSA-4j7f-chw4-xv9v.