CVE-2026-9830 BookingPress Pro < 5.7.3 - Unauthenticated Customer PII Disclosure and Booking Tampering via Permission Callback Bug
Unauthenticated attackers can read customer PII and modify bookings due to a broken REST permission callback in the BookingPress Pro 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-2026-9830?
CVE-2026-9830 is a high-severity missing authorization vulnerability in Unknown bookingpress-appointment-booking-pro, published on 27 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The bookingpress-appointment-booking-pro WordPress plugin before 5.7.3 does not correctly invoke its REST permission callback, leaving every route in one of its API namespaces reachable without authentication and allowing unauthenticated attackers to read customer booking data and modify other users' bookings.
Weakness: CWE-287
Which versions are affected by CVE-2026-9830?
How do I fix CVE-2026-9830?
No fix has been published for CVE-2026-9830 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-2026-9830 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9830 exists.
Public exploit code: 2 proofs of concept on GitHub.
Sources
Also known as GHSA-5h5h-jh94-gqhv.