CVE-2026-13598 RestrictMate < 1.3.0 - Unauthenticated Privilege Escalation to Administrator

Critical 9.8 Published Updated

Unauthenticated attackers can register as administrators due to missing role restrictions, leading to full site takeover.

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-2026-13598?

CVE-2026-13598 is a critical vulnerability in Unknown RestrictMate, published on 23 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The RestrictMate WordPress plugin before 1.3.0 does not restrict the user role supplied during account registration, allowing unauthenticated attackers to create a new administrator account and gain a logged-in administrator session, leading to full site takeover.

Weakness: CWE-269

Which versions are affected by CVE-2026-13598?

How do I fix CVE-2026-13598?

No fix has been published for CVE-2026-13598 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-13598 being exploited?

There is no known exploitation of CVE-2026-13598 in the wild and no public exploit code.

Sources

Also known as GHSA-vmqg-pqj8-5w8h.

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