CVE-2026-80067MasterStudy LMS WordPress Plugin < 3.7.50 Path Traversal via stm_lms_step Parameter

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.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• Changelog release-notespatch
• WordPress Plugin Download Page product
• VulnCheck Advisory: MasterStudy LMS WordPress Plugin < 3.7.50 Path Traversal via stm_lms_step Parameter third-party-advisory