CVE-2026-81339

UNKNOWN 0.0

MasterStudy LMS < 3.7.50 - Subscriber+ Quiz Attempt Grade Disclosure via IDOR

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	unknown
Product	masterstudy lms wordpress plugin
Published	Sep 23, 2026

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Affected Versions

Unknown / MasterStudy LMS WordPress Plugin

0 < 3.7.50

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wpscan.com: https://wpscan.com/vulnerability/f027d0b1-5d8a-4e80-adb3-bbf97dc53306/

Credits

Revanth Hari Narayana Matte WPScan