CVE-2026-9830: Unknown Bookingpress-Appointment-Booking-Pro

High severity, CVSS 8.2. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Unknown Bookingpress-Appointment-Booking-Pro: before 5.7.3 (fixed in 5.7.3)

Published 2026-07-27. Last modified 2026-07-27.