[ CVE-2026-81339 · Published 23 Sep 2026 ]
Vulnerability in Unknown MasterStudy LMS WordPress Plugin
CVSS 4.3
EPSS <1%No fix listed yet
[ Description ]Official description
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not perform a per-object ownership check when returning a quiz attempt result, allowing any authenticated user with a minimal (subscriber) role to read other students' quiz grades, pass/fail status and attempt timestamps by referencing an attempt identifier belonging to another user.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.