The Salon Booking System WordPress plugin before 10.31.9 does not properly check authorization before creating a booking and trusts a caller-supplied user identifier and booking status, allowing una…

Summary

The Salon Booking System WordPress plugin before 10.31.9 does not properly check authorization before creating a booking and trusts a caller-supplied user identifier and booking status, allowing unauthenticated attackers to create bookings attributed to arbitrary users, overwrite those users' stored contact details, and mark bookings as paid or confirmed without any payment.