MasterStudy LMS WordPress Plugin – for Online Courses and Education <= 3.7.30 - Missing Authorization

4.3
Missing Authorization
CVE CVE-2026-57640
CVSS 4.3 (Medium)
Publicly Published June 26, 2026
Last Updated June 29, 2026
Researcher lagi bljr

Description

The MasterStudy LMS WordPress Plugin – for Online Courses and Education plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 3.7.30. This makes it possible for authenticated attackers, with subscriber-level access and above, to perform an unauthorized action.

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Vulnerability Details for MasterStudy LMS WordPress Plugin – for Online Courses and Education

Software Type Plugin
Software Slug masterstudy-lms-learning-management-system (view on wordpress.org)
Patched? Yes
Remediation Update to version 3.7.31, or a newer patched version
Affected Version
  • <= 3.7.30
Patched Version
  • 3.7.31

Recent vulnerabilities in MasterStudy LMS WordPress Plugin – for Online Courses and Education

# Title CVE ID CVSS Researchers Date
1 MasterStudy LMS WordPress Plugin – for Online Courses and Education <= 3.7.39 - Missing Authorization CVE-2026-28145 5.3 Abdullah Kareem "cyberkareem" July 31, 2026
2 MasterStudy LMS WordPress Plugin – for Online Courses and Education <= 3.7.14 - Insecure Direct Object Reference to Authenticated (Instructor+) Arbitrary Attachment Deletion CVE-2026-5060 6.5 Md. Moniruzzaman Prodhan (NomanProdhan) July 28, 2026
3 MasterStudy LMS WordPress Plugin – for Online Courses and Education <= 3.7.27 - Authenticated (Subscriber+) Stored Cross-Site Scripting CVE-2026-57330 6.4 endy June 29, 2026
4 MasterStudy LMS WordPress Plugin – for Online Courses and Education <= 3.7.29 - Authenticated (Subscriber+) SQL Injection CVE-2026-42730 6.5 walow May 24, 2026
5 MasterStudy LMS WordPress Plugin – for Online Courses and Education <= 3.7.25 - Authenticated (Subscriber+) SQL Injection CVE-2026-40766 6.5 Jakub Herman April 21, 2026
6 MasterStudy LMS <= 3.7.25 - Authenticated (Subscriber+) Time-based Blind SQL Injection via 'order' and 'orderby' Parameters CVE-2026-4817 6.5 Naoya Takahashi (nakko) April 16, 2026
7 MasterStudy LMS WordPress Plugin – for Online Courses and Education <= 3.7.11 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'stm_lms_courses_grid_display' Shortcode CVE-2026-0559 6.4 Muhammad Yudha - DJ February 13, 2026
8 MasterStudy LMS WordPress Plugin – for Online Courses and Education <= 3.7.6 Missing Authorization to Authenticated (Subscriber+) Posts and Media Creation, Modification and Deletion CVE-2025-13766 5.4 thinnawarth mathuros January 5, 2026
9 MasterStudy LMS <= 3.6.27 - Authenticated (Instructor+) SQL Injection CVE-2025-64366 6.5 YC_Infosec October 23, 2025
10 MasterStudy LMS <= 3.6.20 - Authenticated (Instructor+) Sensitive Information Exposure CVE-2025-59575 4.3 Bibek Dhakal October 16, 2025

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