CVE-2026-18042 WP Travel < 12.0.2 - Unauthenticated Arbitrary Booking Cancellation

Medium 5.3 Published Updated

Unauthenticated attackers can cancel any customer's booking due to missing authorization checks in the WP Travel 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-2026-18042?

CVE-2026-18042 is a medium-severity missing authorization vulnerability in Unknown WP Travel, published on 9 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The WP Travel WordPress plugin before 12.0.2 does not verify that the requester is authorized to act on the booking targeted by one of its front-end payment-message handlers, allowing unauthenticated attackers to cancel the payment on any customer's booking.

Weakness: CWE-862

Which versions are affected by CVE-2026-18042?

How do I fix CVE-2026-18042?

No fix has been published for CVE-2026-18042 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-2026-18042 being exploited?

There is no known exploitation of CVE-2026-18042 in the wild and no public exploit code.

Sources

Also known as GHSA-f6xw-m2mf-q3q9.

Is CVE-2026-18042 in your software?

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