Amelia 1.2.32 - 2.4.8 - Amelia Customer+ Appointment Status Update and Self-Approval

The Booking for Appointments and Events Calendar WordPress plugin before 2.4.9 does not check that a user holds the required capability before letting them change an appointment's status, allowing customers to set arbitrary statuses on appointments they are booked on, including approving their own bookings that were left awaiting approval and overwriting another customer's booking status on a shared appointment.