CVE-2026-81340: The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not perform per-object ownership or capability

The MasterStudy LMS WordPress Plugin (a learning management system tool for WordPress) before version 3.7.50 has a security flaw where it doesn't check whether users own or have permission to modify orders through its REST API (a system that lets external programs interact with WordPress). This allows instructors to change any order on the site, including giving people free course access, removing others' paid enrollments, and editing order notes.