MasterStudy LMS Pro CVE-2025-64212
MEDIUMSeverity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Network-accessible WordPress plugin endpoint (AV:N) requires a low-privilege authenticated account (PR:L); no confidentiality impact is indicated by available data.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
1DescriptionCVE.org
Missing Authorization vulnerability in StylemixThemes MasterStudy LMS Pro masterstudy-lms-learning-management-system-pro allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MasterStudy LMS Pro: from n/a through < 4.7.16.
AnalysisAI
Missing authorization controls in the MasterStudy LMS Pro WordPress plugin (all versions prior to 4.7.16) allow authenticated low-privilege users to exploit incorrectly configured access control levels, resulting in limited unauthorized integrity and availability impact. The flaw (CWE-862) indicates that one or more plugin endpoints or AJAX handlers execute privileged operations without verifying the calling user's capabilities. With EPSS at 0.03% and no CISA KEV listing, real-world exploitation risk is currently low, though the network-accessible attack vector means any authenticated site user could attempt to trigger the flaw without special conditions or user interaction.
Technical ContextAI
MasterStudy LMS Pro is a premium Learning Management System plugin for WordPress, developed by StylemixThemes. CWE-862 (Missing Authorization) occurs when code executes a sensitive operation without first verifying whether the requesting user holds the necessary capability - in WordPress, this typically means the absence of a current_user_can() or equivalent nonce/role check on a REST API endpoint, AJAX handler, or admin action hook. The CVSS vector AV:N/AC:L/PR:L/UI:N confirms the vulnerable functionality is reachable over the network with no special configuration, and that a low-privilege account (such as a registered student or subscriber) is sufficient to trigger the flaw. No CPE strings were included in the source data, so the precise affected component within the plugin cannot be identified beyond the version range.
Affected ProductsAI
MasterStudy LMS Pro by StylemixThemes for WordPress is affected in all versions from the beginning of the product's availability through versions prior to 4.7.16. The fix was introduced in version 4.7.16. No CPE strings were provided in the source data. The Patchstack advisory is available at https://patchstack.com/database/Wordpress/Plugin/masterstudy-lms-learning-management-system-pro/vulnerability/wordpress-masterstudy-lms-pro-plugin-4-7-16-broken-access-control-vulnerability and is the primary authoritative reference for this vulnerability.
RemediationAI
Update MasterStudy LMS Pro to version 4.7.16 or later, which introduces the missing authorization checks per the Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/masterstudy-lms-learning-management-system-pro/vulnerability/wordpress-masterstudy-lms-pro-plugin-4-7-16-broken-access-control-vulnerability. If immediate patching is not feasible, reduce the pool of potential attackers by disabling open user registration on the WordPress site, or restricting account creation to trusted users only - this limits exploitation to already-trusted low-privilege accounts. A Web Application Firewall (WAF) rule targeting the specific vulnerable endpoint could serve as an additional compensating control, though the precise endpoint is not identified in available data. No vendor advisory from StylemixThemes was present in the references; confirm the fix via the WordPress plugin repository changelog.
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Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
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