CVE-2026-40780 WordPress BookIt plugin < 2.5.4.1 - Broken Authentication vulnerability

High 7.5 Published Updated

An attacker can bypass authentication via password recovery to take over accounts in the BookIt WordPress plugin.

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-2026-40780?

CVE-2026-40780 is a high-severity authentication bypass vulnerability in Liquid Web / StellarWP BookIt, published on 2 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Authentication Bypass Using an Alternate Path or Channel vulnerability in Liquid Web / StellarWP BookIt allows Password Recovery Exploitation.

This issue affects BookIt: from n/a before 2.5.4.1.

Weakness: CWE-288

Which versions are affected by CVE-2026-40780?

How do I fix CVE-2026-40780?

No fix has been published for CVE-2026-40780 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-40780 being exploited?

There is no known exploitation of CVE-2026-40780 in the wild and no public exploit code.

Sources

Also known as GHSA-6wpw-j4xp-qqv8.

Is CVE-2026-40780 in your software?

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