CVE-2025-59577

MasterStudy LMS <= 3.6.20 - Authenticated (Subscriber+) Race Condition to Multiple Reviews

mediumConcurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

4.3

CVSS Score

4.3

CVSS Score

medium

Severity

3.6.21

Patched in

Time to patch

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.

CVSS Vector Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

None

Confidentiality

Low

Integrity

None

Availability

Technical Details

Affected versions<=3.6.20

PublishedSeptember 22, 2025

Last updatedSeptember 26, 2025

Affected pluginmasterstudy-lms-learning-management-system

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/1f404b2f-536d-4549-b74b-90b8bbd0edae?source=api-prod

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