CVE-2026-81194: CWE-639 Authorization Bypass Through User-Controlled Key in MasterStudy LMS WordPress Plugin
Description
CVE-2026-81194 is a medium severity vulnerability in the MasterStudy LMS WordPress Plugin before version 3.7.46. It allows any authenticated user, including those with Subscriber roles, to bypass authorization checks and access other instructors' course sales records by providing another user's identifier. This issue arises from improper authorization verification when retrieving order line-item data.
CVSS v3.1
Score 4.3medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The MasterStudy LMS WordPress Plugin versions prior to 3.7.46 do not properly verify authorization when an authenticated user requests order line-item data. This flaw enables users with low privileges, such as Subscribers, to access sales records belonging to other instructors by supplying a different user's identifier. The vulnerability is classified under CWE-639 (Authorization Bypass Through User-Controlled Key). The CVSS v3.1 base score is 4.3, indicating moderate impact primarily on confidentiality.
Potential Impact
An attacker with any authenticated user role can read sensitive sales data of other instructors, potentially exposing confidential business information. There is no impact on data integrity or availability reported. The confidentiality impact is limited to information disclosure of course sales records.
Mitigation Recommendations
No official patch or fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict user roles and permissions carefully and monitor access to sensitive data where possible.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-rj36-pvv3-3g3h
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-81194"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a984527acd9273b496aa74b
Added to database: 09/02/2026, 15:47:51 UTC
Last enriched: 09/08/2026, 02:38:35 UTC
Last updated: 10/17/2026, 06:48:20 UTC
Views: 33
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