Unauthenticated administrator creation via unchecked registration data
Published Mar 29, 2024 · Updated Apr 8, 2026
Privilege escalation in StylemixThemes MasterStudy LMS 3.3.1 and earlier allows remote attackers to register administrator accounts. The unauthenticated stm_lms_register AJAX action calls _register_user(), which accepts registration data without restricting administrator capabilities. Exploitation requires MasterStudy LMS Pro with the LMS Forms Editor add-on enabled and grants control of the affected WordPress site.
Summary
What happened
Privilege escalation in StylemixThemes MasterStudy LMS 3.3.1 and earlier allows remote attackers to register administrator accounts. The unauthenticated stm_lms_register AJAX action calls _register_user(), which accepts registration data without restricting administrator capabilities. Exploitation requires MasterStudy LMS Pro with the LMS Forms Editor add-on enabled and grants control of the affected WordPress site.
The record
- CVE
- CVE-2024-2409
- Published
- Mar 29, 2024
- Updated
- Apr 8, 2026
- Vendor
- StylemixThemes
- Product
- MasterStudy LMS
- Classifications
- CWE-266, T1136.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 29, 2024CVE publishedPublication date reported by the CVE source.
- Apr 8, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=3.3.1
- Affected versionversion=0 <3.3.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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