CVE-2026-80069

Medium

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.

SeverityMedium

CVSS5.4

Exploit probability—

ProductMasterStudy LMS WordPress Plugin

PublishedOct 29, 2026

First seenNov 4, 2026

Weakness typeCWE-862Missing authorization

How to fix

Update

Stylemix MasterStudy LMS WordPress Plugin3.7.50 or later

Patches

docs.stylemixthemes.com/masterstudy-lms/changelog-free-version

Affected products

Product	Affected versions	Fixed in
Stylemix MasterStudy LMS WordPress Plugin	v < 3.7.50	3.7.50

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