CVE-2026-80067
MasterStudy LMS WordPress Plugin < 3.7.50 Path Traversal via stm_lms_step Parameter
- State
- Published
- Severity
- 5.3 Medium
- Published
- Oct 29, 2026
- Updated
- Oct 29, 2026
- Reserved
- Aug 25, 2026
Description
MasterStudy LMS plugin for WordPress before 3.7.50 contains a path traversal vulnerability that allows authenticated Subscriber-level users to import arbitrary WXR XML files by supplying directory traversal sequences in the stm_lms_step parameter passed to the stm_lms_import_sample_data AJAX action, which lacks capability checks and nonce verification. Attackers can traverse the file system to reference a reachable WXR file and have the handler publish its contained posts under their identity, enabling publication of attacker-chosen post type, title, content, and metadata.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
MasterStudy LMS WordPress PluginStylemix |
|
References
- Changelogrelease-notespatch
- WordPress Plugin Download Pageproduct
- VulnCheck Advisory: MasterStudy LMS WordPress Plugin < 3.7.50 Path Traversal via stm_lms_step Parameterthird-party-advisory
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