Tutor LMS < 3.9.4 - Missing Authorization to Authenticated (Subscriber+) Sensitive Information Exposure via tutor_order_details

Description

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the get_order_by_id() function in all versions up to, and including, 3.9.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to enumerate order IDs and exfiltrate sensitive data (PII), such as student name, email address, phone number, and billing address.