CVE-2026-80069 MasterStudy LMS WordPress Plugin < 3.7.50 Missing Authorization via stm_lms_send_test_email_ajax

Q: What is CVE-2026-80069?

CVE-2026-80069 is a medium-severity vulnerability in Stylemix MasterStudy LMS WordPress Plugin, published on 29 Oct 2026.

Q: Is CVE-2026-80069 being exploited?

There is no known exploitation of CVE-2026-80069 in the wild and no public exploit code.

Q: How do I fix CVE-2026-80069?

No fix has been published for CVE-2026-80069 yet. Limit exposure of the affected software until one is available.

Medium 5.3 Published 29 Oct 2026 Updated 29 Oct 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-80069?

CVE-2026-80069 is a medium-severity vulnerability in Stylemix MasterStudy LMS WordPress Plugin, published on 29 Oct 2026.

Official 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.

Weakness: CWE-22

Which versions are affected by CVE-2026-80069?

How do I fix CVE-2026-80069?

No fix has been published for CVE-2026-80069 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-80069 being exploited?