CVE-2024-2409: MasterStudy LMS WordPress Plugin – for Online Courses and Education · Incorrect Privilege Assignment
Affects MasterStudy LMS WordPress Plugin – for Online Courses and EducationSource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.8% chance of exploitation in 30 days – higher than 57% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 29 Mar 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| stylemix MasterStudy LMS WordPress Plugin – for Online Courses and Education | Affected
| Fixed in– |
AI-suggested
Until an official fix is released, it is recommended to disable the MasterStudy LMS Pro and LMS Forms Editor add-on or restrict access to the vulnerable AJAX action if possible. Monitor official stylemix communications for updates and apply patches promptly once available.
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.
References
- wordfence.com/threat-intel/vulnerabilities/id/94736152-b365-4b3a-a786-ed49f7d0fc7a?source=cve (opens in a new tab)
- docs.stylemixthemes.com/masterstudy-lms/changelog-free-version (opens in a new tab)
- plugins.trac.wordpress.org/changeset/3059676/masterstudy-lms-learning-management-system (opens in a new tab)