CVE-2026-88843
Received Received - Intake

Local File Inclusion in MasterStudy LMS WordPress Plugin

Publication date: 2026-09-24

Last updated on: 2026-09-24

Assigner: WPScan

Description
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not validate one of its display-style settings before using it to build a template path, allowing users with the Contributor role and above to include and execute arbitrary local PHP files on the server. An equivalent path was corrected in an earlier release and this one was not, so the issue persists in versions the earlier advisory reports as fixed.

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Meta Information

Published
2026-09-24
Last Modified
2026-09-24
Generated
2026-09-24
AI Q&A
2026-09-24
EPSS Evaluated
N/A
NVD
CVE-2026-88843
EUVD
EUVD-2026-85801

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
masterstudy lms From 3.5.29 (inc) to 3.7.49 (inc)
masterstudy lms 3.7.50
masterstudy lms to 3.7.50 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is a Local File Inclusion (LFI) flaw in the MasterStudy LMS WordPress Plugin affecting versions 3.5.29 through 3.7.49. It occurs because the plugin does not properly validate a display-style setting before using it to build a template path. This allows users with the Contributor role or higher to include and execute arbitrary local PHP files on the server.

Detection Guidance

Check if your MasterStudy LMS plugin version is between 3.5.29 and 3.7.49. Use WordPress admin panel or run: wp plugin list | grep masterstudy-lms. If vulnerable, update to version 3.7.50 or later immediately.

Impact Analysis

An attacker with Contributor access or higher could exploit this to execute malicious PHP code on your server. This could lead to unauthorized data access, server compromise, or further attacks within your WordPress environment. The impact includes potential data breaches, defacement, or malware installation.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR's data protection requirements and HIPAA's security rules for protected health information. Non-compliance may result in legal penalties, fines, or reputational damage due to data exposure.

Mitigation Strategies

Update the MasterStudy LMS plugin to version 3.7.50 or higher. Remove unnecessary user roles like Contributor if not required. Monitor server logs for unusual file inclusion attempts.

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