CVE-2026-88844: CWE-639 Authorization Bypass Through User-Controlled Key in MasterStudy LMS WordPress Plugin
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not verify that the requesting user owns the course before returning its enrolled-student data, allowing users with the MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50's Instructor role to disclose the names and email addresses of students enrolled in other instructors' courses.
AI Analysis
Technical Summary
CVE-2026-88844 is an authorization bypass vulnerability in the MasterStudy LMS WordPress Plugin prior to version 3.7.50. The plugin does not properly verify that the requesting user owns the course before returning enrolled-student data. As a result, users assigned the Instructor role can retrieve personal information of students enrolled in other instructors' courses, violating access controls.
Potential Impact
Users with the Instructor role can access personally identifiable information (names and email addresses) of students enrolled in courses they do not own. This unauthorized disclosure of student data compromises privacy and could lead to further social engineering or phishing attacks targeting those students.
Mitigation Recommendations
A fix is available in MasterStudy LMS WordPress Plugin version 3.7.50 and later. Users should upgrade to version 3.7.50 or newer to remediate this authorization bypass vulnerability.
CVE-2026-88844: CWE-639 Authorization Bypass Through User-Controlled Key in MasterStudy LMS WordPress Plugin
Description
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not verify that the requesting user owns the course before returning its enrolled-student data, allowing users with the MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50's Instructor role to disclose the names and email addresses of students enrolled in other instructors' courses.
CVSS v3.1
Score 2.7low
Affected software
MasterStudy LMS WordPress Plugin
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-88844 is an authorization bypass vulnerability in the MasterStudy LMS WordPress Plugin prior to version 3.7.50. The plugin does not properly verify that the requesting user owns the course before returning enrolled-student data. As a result, users assigned the Instructor role can retrieve personal information of students enrolled in other instructors' courses, violating access controls.
Potential Impact
Users with the Instructor role can access personally identifiable information (names and email addresses) of students enrolled in courses they do not own. This unauthorized disclosure of student data compromises privacy and could lead to further social engineering or phishing attacks targeting those students.
Mitigation Recommendations
A fix is available in MasterStudy LMS WordPress Plugin version 3.7.50 and later. Users should upgrade to version 3.7.50 or newer to remediate this authorization bypass vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-10T09:57:47.089Z
- State
- PUBLISHED
Threat ID: 6aacd5a555bf5e2cf5955f33
Added to database: 09/18/2026, 06:09:41 UTC
Last enriched: 09/18/2026, 06:16:55 UTC
Last updated: 09/18/2026, 22:12:52 UTC
Views: 10
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