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Vulnerability record · CVE-2024-2409 · published 29 March 2024

CVE-2024-2409: Stylemixthemes masterstudy lms vulnerability

Stylemixthemes · Masterstudy Lms

The MasterStudy LMS plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.3.1. This is due to insufficient validation checks within the _register_user() function called by the 'wp_ajax_nopriv_stm_lms_register' AJAX action. This makes it possible for unauthenticated attackers to register a user with administrator-level privileges when MasterStudy LMS Pro is installed and the LMS Forms Editor add-on is enabled.

9.8 CVSS 3.1 Critical EPSS 0.83% · top 44.0% CWE-266 · CWE-266
9.8CVSS 3.1 base score
0.83%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

The MasterStudy LMS plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.3.1. This is due to insufficient validation checks within the _register_user() function called by the 'wp_ajax_nopriv_stm_lms_register' AJAX action. This makes it possible for unauthenticated attackers to register a user with administrator-level privileges when MasterStudy LMS Pro is installed and the LMS Forms Editor add-on is enabled.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://docs.stylemixthemes.com/masterstudy-lms/changelog-free-version#id-3.3.2 PatchRelease Notes
https://plugins.trac.wordpress.org/changeset/3059676/masterstudy-lms-learning-management-system Patch
https://www.wordfence.com/threat-intel/vulnerabilities/id/94736152-b365-4b3a-a786-ed49f7d0fc7a?source=cve Third Party Advisory
https://docs.stylemixthemes.com/masterstudy-lms/changelog-free-version#id-3.3.2 PatchRelease Notes
https://plugins.trac.wordpress.org/changeset/3059676/masterstudy-lms-learning-management-system Patch
https://www.wordfence.com/threat-intel/vulnerabilities/id/94736152-b365-4b3a-a786-ed49f7d0fc7a?source=cve Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2024-2409), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.