CVE-2026-88846: CWE-862 Missing Authorization in MasterStudy LMS WordPress Plugin
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not check whether user registration is enabled on the site before creating an account through one of its front-end registration flows, allowing unauthenticated users to create accounts, and be logged into them, on sites where registration has been deliberately disabled.
AI Analysis
Technical Summary
CVE-2026-88846 is a missing authorization vulnerability (CWE-862) in the MasterStudy LMS WordPress Plugin versions from 2.3.0 up to but not including 3.7.50. The plugin fails to check whether user registration is enabled on the WordPress site before permitting account creation via its front-end registration mechanisms. As a result, attackers can create accounts and log in even if the site owner has disabled registration, bypassing intended access controls.
Potential Impact
Unauthenticated users can create and access accounts on WordPress sites using the vulnerable plugin, even when registration is disabled. This undermines site access control policies and may allow unauthorized access to site resources or functionality intended only for registered users.
Mitigation Recommendations
Upgrade the MasterStudy LMS WordPress Plugin to version 3.7.50 or later, where this authorization check issue is fixed. There is no indication that temporary workarounds exist. Patch status is confirmed by the version range indicating the fix in 3.7.50.
CVE-2026-88846: CWE-862 Missing Authorization in MasterStudy LMS WordPress Plugin
Description
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not check whether user registration is enabled on the site before creating an account through one of its front-end registration flows, allowing unauthenticated users to create accounts, and be logged into them, on sites where registration has been deliberately disabled.
CVSS v3.1
Score 5.3medium
Affected software
MasterStudy LMS WordPress Plugin
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-88846 is a missing authorization vulnerability (CWE-862) in the MasterStudy LMS WordPress Plugin versions from 2.3.0 up to but not including 3.7.50. The plugin fails to check whether user registration is enabled on the WordPress site before permitting account creation via its front-end registration mechanisms. As a result, attackers can create accounts and log in even if the site owner has disabled registration, bypassing intended access controls.
Potential Impact
Unauthenticated users can create and access accounts on WordPress sites using the vulnerable plugin, even when registration is disabled. This undermines site access control policies and may allow unauthorized access to site resources or functionality intended only for registered users.
Mitigation Recommendations
Upgrade the MasterStudy LMS WordPress Plugin to version 3.7.50 or later, where this authorization check issue is fixed. There is no indication that temporary workarounds exist. Patch status is confirmed by the version range indicating the fix in 3.7.50.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-10T09:58:14.580Z
- State
- PUBLISHED
Threat ID: 6ab4c0b3f7a7c54106f3a83f
Added to database: 09/24/2026, 06:18:27 UTC
Last enriched: 09/24/2026, 06:33:35 UTC
Last updated: 09/25/2026, 02:09:26 UTC
Views: 12
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