CVE-2026-39663 WordPress TrueBooker plugin <= 1.1.5 - Broken Access Control vulnerability

Q: What is CVE-2026-39663?

CVE-2026-39663 is a medium-severity missing authorization vulnerability in themetechmount TrueBooker, published on 8 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Q: Is CVE-2026-39663 being exploited?

There is no known exploitation of CVE-2026-39663 in the wild and no public exploit code.

Q: How do I fix CVE-2026-39663?

No fix has been published for CVE-2026-39663 yet. Limit exposure of the affected software until one is available.

Medium 5.3 Published 8 Apr 2026 Updated 29 Apr 2026

Attackers can bypass access controls in the TrueBooker WordPress plugin to perform unauthorized actions.

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-2026-39663?

CVE-2026-39663 is a medium-severity missing authorization vulnerability in themetechmount TrueBooker, published on 8 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Missing Authorization vulnerability in themetechmount TrueBooker truebooker-appointment-booking allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects TrueBooker: from n/a through <= 1.1.5.

Weakness: CWE-862

Which versions are affected by CVE-2026-39663?

How do I fix CVE-2026-39663?

No fix has been published for CVE-2026-39663 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-2026-39663 being exploited?