CVE-2026-87894 Rox Appointment Booking 1.0.9 - 1.2.2 - Unauthenticated Customer PII Disclosure via IDOR

Medium 5.3 Published Updated

Unauthenticated attackers can enumerate sequential booking IDs to access sensitive customer PII due to missing authorization checks in the Rox Appointment Booking 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-2026-87894?

CVE-2026-87894 is a medium-severity missing authorization vulnerability in Unknown Rox Appointment Booking, published on 12 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Rox Appointment Booking WordPress plugin before 1.2.3 does not perform any authorization check on the endpoint that returns a booking's confirmation details, and each booking is addressed by a sequential numeric identifier, allowing unauthenticated attackers to read any customer's name, email, phone, booking details and payment status by enumerating that identifier.

Weakness: CWE-639

Which versions are affected by CVE-2026-87894?

How do I fix CVE-2026-87894?

No fix has been published for CVE-2026-87894 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-2026-87894 being exploited?

There is no known exploitation of CVE-2026-87894 in the wild and no public exploit code.

Sources

Also known as GHSA-q7rp-7xmv-xrww.

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