CVE-2026-66679 WordPress Appointment Hour Booking plugin <= 1.5.91 - Broken Access Control vulnerability

Medium 6.5 Published Updated

Unauthenticated attackers can bypass access controls in the Appointment Hour Booking plugin, potentially accessing restricted functionality.

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-2026-66679?

CVE-2026-66679 is a medium-severity missing authorization vulnerability in codepeople Appointment Hour Booking, published on 18 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Unauthenticated Broken Access Control in Appointment Hour Booking <= 1.5.91 versions.

Weakness: CWE-1284

Which versions are affected by CVE-2026-66679?

How do I fix CVE-2026-66679?

No fix has been published for CVE-2026-66679 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-2026-66679 being exploited?

There is no known exploitation of CVE-2026-66679 in the wild and no public exploit code.

Sources

Also known as GHSA-j37p-88hf-r5j6.

Is CVE-2026-66679 in your software?

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