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.

Related CPE's


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Weaknesses



CWE-22

CVSS impact metrics


CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

5.4 · Medium

Information


Source identifier

[email protected]

Vulnerability status

Deferred

Published

2026-10-29T15:17:24.380Z

15 hours ago

Last modified

2026-10-29T17:18:10.653Z

13 hours ago