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Medium · 5.4 CVE-2026-80069 EUVD-2026-112859GHSA-hp8j-2mhm-c28w

MasterStudy LMS WordPress Plugin < 3.7.50 Missing Authorization via stm_lms_send_test_email_ajax

Published Oct 29, 2026 · Updated Nov 2, 2026 · Assigned by VulnCheck

Description

MasterStudy LMS plugin for WordPress before 3.7.50 contains a missing authorization vulnerability that allows any authenticated user, including Subscribers, to trigger the stm_lms_send_test_email_ajax AJAX action without capability or nonce validation. Attackers can invoke this handler directly or via cross-site request forgery to cause an uncaught PHP fatal error that, when display_errors is enabled, discloses the absolute filesystem path of the plugin.

Affected products

VendorProductAffectedFixed
Stylemix MasterStudy LMS WordPress Plugin < 3.7.50 3.7.50

References