CVE-2026-88846
Received Received - Intake

Unauthenticated Account Creation 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 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.

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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-2026-88846
EUVD
EUVD-2026-85803

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
masterstudy lms to 3.7.49 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

The MasterStudy LMS WordPress Plugin before version 3.7.50 has a vulnerability where it does not check if user registration is enabled on a WordPress site before allowing unauthenticated users to create accounts through its front-end registration process. This means even if site administrators have disabled user registration, attackers can still create accounts and log into them.

Detection Guidance

Check if the MasterStudy LMS plugin version is between 2.3.0 and 3.7.49. Use WordPress admin panel or run a command like 'wp plugin list' if using WP-CLI to verify the installed version.

Impact Analysis

This vulnerability allows unauthorized users to create accounts on your WordPress site without your permission, potentially leading to unauthorized access, data breaches, or misuse of site resources. It undermines user management controls and could enable malicious activities if registration was intentionally disabled for security reasons.

Compliance Impact

This vulnerability could impact compliance by allowing unauthorized account creation, which may violate data protection principles under GDPR or HIPAA if it leads to unauthorized access to personal data. It undermines access control measures required by these regulations.

Mitigation Strategies

Update the MasterStudy LMS plugin to version 3.7.50 or later immediately to patch the vulnerability. If updating is not possible, consider disabling the plugin until an update is available.

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