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CVE-2026-80069

MEDIUM 5.3 CVSS 4.0
Published
October 29, 2026
Last modified
November 2, 2026
NVD status
Deferred
Reported by
disclosure@vulncheck.com
Weakness
CWE-862
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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 WordPress components

  • MasterStudy LMS WordPress Plugin – for Online Courses and Education Plugin · masterstudy-lms-learning-management-system
    Confirmed match Active
    Before 3.7.50
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Stylemix MasterStudy LMS WordPress Plugin — Before 3.7.50

References

  • docs.stylemixthemes.com https://docs.stylemixthemes.com/masterstudy-lms/changelog-free-version
  • wordpress.org https://wordpress.org/plugins/masterstudy-lms-learning-management-system
  • www.vulncheck.com https://www.vulncheck.com/advisories/masterstudy-lms-wordpress-plugin-missing-authorization-via-stm-lms-send-test-email-ajax
  • nvd.nist.gov Official NVD record