WordPress Plugin Vulnerabilities

MasterStudy LMS < 3.6.21 - Authenticated (Subscriber+) Race Condition to Multiple Reviews

Description

The MasterStudy LMS WordPress Plugin – for Online Courses and Education plugin for WordPress is vulnerable to a race condition in all versions up to, and including, 3.6.20. This makes it possible for authenticated attackers, with Subscriber-level access and above, to leave multiple reviews on a course.

Affects Plugins

Plugin icon
masterstudy-lms-learning-management-system
Fixed in 3.6.21

References

CVE
CVE-2025-59577
URL
https://www.wordfence.com/threat-intel/vulnerabilities/id/1f404b2f-536d-4549-b74b-90b8bbd0edae

Classification

Type
RACE CONDITION
OWASP top 10
A6: Security Misconfiguration
CWE
CWE-362
CVSS
4.3 (medium)

Miscellaneous

Original Researcher
Bibek Dhakal
Verified
No
WPVDB ID
c186d758-e3b0-46cd-a001-c945dee7c130

Timeline

Publicly Published
2025-09-22 (about 1 year ago)
Added
2025-09-26 (about 1 year ago)
Last Updated
2025-09-26 (about 1 year ago)

Other

Published
Title
Published
2022-08-31
Title
WP-PostRatings < 1.90 - Ratings Tempering via Race Condition
Published
2026-10-12
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Events Manager – Calendar, Bookings, Tickets, Appointments and more! <= 7.4.8 - Unauthenticated Race Condition
Published
2022-09-14
Title
Rate my Post < 3.3.5 - Subscriber+ Votes Tampering via Race Condition
Published
2026-10-08
Title
Tutor LMS – eLearning and online course solution <= 4.1.2 - Authenticated (Subscriber+) Race Condition
Published
2022-11-24
Title
WP ULike < 4.6.5 - Unauthenticated Rating Tampering via Race Condition