Salon Booking System – Free Version <= 10.30.33 - Subscriber+ Arbitrary Booking PII Disclosure via IDOR

Description

The plugin does not verify that a requested booking belongs to the caller on one of its REST API endpoints, requiring only a basic read capability, allowing any authenticated user (including a Subscriber or self-registered customer account) to disclose any customer's booking personal data such as name, email, phone number, address and private notes by enumerating booking identifiers.