CVE-2026-88847

MasterStudy LMS < 3.7.50 - Subscriber+ Lesson Completion Record Creation

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not verify that a user is enrolled in a course before recording lesson completions against it, allowing any authenticated user, such as a subscriber, to create course progress records for courses they have no access to.

Affected

MasterStudy LMS WordPress Plugin

CVSS v3.1 CNA

4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS

0.15% chance of exploitation in the next 30 days, 4th percentile

Published

2026-09-24

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/c42e9b3a-5a0d-4e16-b18a-4184c09bcb5a/

References

• CVE Record
• NVD entry