CVE-2026-81196

MasterStudy LMS < 3.7.46 - Instructor+ Quiz Answer Disclosure via IDOR

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not properly verify ownership of quiz question identifiers, allowing users with instructor access to read other instructors' quiz questions, including the correct answers and explanations.

Affected

MasterStudy LMS WordPress Plugin

CVSS v3.1 CNA

2.7 LOWCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

EPSS

0.18% chance of exploitation in the next 30 days, 7th percentile

Published

2026-09-02

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/d11acb84-6dd0-4229-ac30-dba3ad6b9614/

References

• CVE Record
• NVD entry