TI-2024-02237 Aliases CVE-2024-2409 GHSA-62c6-x54m-9q5v

MasterStudy LMS <= 3.3.1 - Unauthenticated Privilege Escalation via stm_lms_register AJAX Action

MEDIUM 50CWE-266Published 2024-03-29 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Privilege escalation
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-266.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00834 57th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
StylemixThemes	MasterStudy LMS WordPress Plugin – for Online Courses and Education	up to 3.3.1	—	No fix listed	CNA

MasterStudy LMS WordPress Plugin – for Online Courses and Education VendorStylemixThemes Affected up to 3.3.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:stylemixthemes:masterstudy_lms::::::wordpress::*	before 3.3.2	Vulnerable	StylemixThemes

cpe:2.3:a:stylemixthemes:masterstudy_lms:*:*:*:*:*:wordpress:*:* Versions before 3.3.2 Vulnerable ·StylemixThemes

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-2409
2026-10-03 Alias added: GHSA-62c6-x54m-9q5v

References

Patch 2

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/94736152-b365-4b3a-a786-ed49f7d0fc7a?source=cve

TI-2024-01413 MasterStudy LMS WordPress Plugin – for Online Courses and Education <= 3.2.5 - Unauthenticated SQL Injection CVSS 3.1CRITICAL 9.8
TI-2022-00364 MasterStudy LMS < 2.7.6 - Unauthenticated Admin Account Creation CVSS 3.1CRITICAL 9.8
TI-2024-05535 MasterStudy LMS < 3.3.24 - Privilege Escalation to Instructor CVSS 3.1CRITICAL 9.1
TI-2023-03958 MasterStudy LMS < 3.0.18 - Unauthenticated Instructor Account Creation CVSS 3.1HIGH 7.5
TI-2024-02936 MasterStudy LMS <= 3.3.3 - Unauthenticated Local File Inclusion via template CVSS 3.1CRITICAL 9.8
TI-2024-24623 WordPress MasterStudy LMS plugin <= 3.2.12 - Broken Access Control vulnerability CVSS 3.1CRITICAL 9.8

See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences