TrueBooker WordPress plugin vulnerabilities

The TrueBooker WordPress plugin before 1.3.0 does not have authorization checks in place in some of its functionality, allowing unauthenticated users to create and modify booking services and categories, including their prices.

The TrueBooker WordPress plugin before 1.3.0 does not have authorization checks in some of its AJAX actions and does not validate the submitted service price server-side, allowing unauthenticated users to create bookings at a price of their choosing and to attach them to arbitrary customer accounts.

The TrueBooker WordPress plugin before 1.3.0 does not verify that the requester owns a booking before rendering its confirmation summary, allowing unauthenticated attackers to enumerate booking identifiers and retrieve the personal information of customers who booked an appointment, as well as invalidate the customer's own confirmation link.

The TrueBooker WordPress plugin before 1.3.0 does not perform any capability check on one of its setup handlers, and the token it checks is issued to unauthenticated visitors. This allows anyone to overwrite the plugin's entire configuration and discard any settings they do not supply.