Rox Appointment Booking vulnerabilities

The Rox Appointment Booking plugin for WordPress (up to 1.3.1) is vulnerable to Privilege Escalation via Mass Assignment. The public REST endpoint allows unauthenticated attackers to persist an arbitrary WordPress user ID (wp_user_id) with a controlled email address. When an administrator opens and saves the customer record, the administrator's email is overwritten, enabling account takeover.

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. This allows unauthenticated attackers to read any customer's name, email, phone, booking details and payment status by enumerating that identifier.

The Rox Appointment Booking WordPress plugin before 1.2.0 does not verify the order total or the selected payment method against its own server-side pricing when creating a booking. This allows unauthenticated attackers to create confirmed bookings at an arbitrary price and to bypass the site's configured payment-method restrictions.

The Rox Appointment Booking WordPress plugin before 1.2.0 does not perform any capability or authorization check when saving its holiday schedule. This allows unauthenticated attackers to overwrite the dates the booking system treats as unavailable, which can block legitimate bookings or open dates the site owner intended to keep closed.