The Salon Booking System WordPress plugin before 10.31.3 does not restrict several of its booking REST API routes to users with the appropriate capability, allowing any authenticated user such as a subscriber to read every customer's booking records, including their personal data.

The Salon Booking System WordPress plugin before 10.31.3 does not restrict several of its booking REST API routes to users with the appropriate capability, allowing any authenticated user such as a subscriber to read every customer's booking records, including their personal data.