---
id: CVE-2026-80067
title: >-
  MasterStudy LMS WordPress Plugin < 3.7.50 Path Traversal via stm_lms_step
  Parameter
summary: >-
  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 …
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-22
vendor: Stylemix
product: MasterStudy LMS WordPress Plugin
affected:
  - masterstudy_lms_wordpress_plugin < 3.7.50
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-29T14:37:50.894489Z'
published: '2026-10-29'
updated: '2026-10-29'
sourceUpdated: '2026-10-29T16:49:20.826Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-80067'
references:
  - url: 'https://docs.stylemixthemes.com/masterstudy-lms/changelog-free-version'
    label: Changelog
  - url: 'https://wordpress.org/plugins/masterstudy-lms-learning-management-system'
    label: WordPress Plugin Download Page
  - url: >-
      https://www.vulncheck.com/advisories/masterstudy-lms-wordpress-plugin-path-traversal-via-stm-lms-step-parameter
    label: >-
      VulnCheck Advisory: MasterStudy LMS WordPress Plugin < 3.7.50 Path
      Traversal via stm_lms_step Parameter
tags:
  - cve.org
epss: 0.00585
epssPercentile: 0.47976
ingestedAt: '2026-11-01T21:01:32.743Z'
---

## Overview

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.

## Affected

- `masterstudy_lms_wordpress_plugin < 3.7.50`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.