CVE-2025-59576: Stylemix Masterstudy Lms

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

Missing Authorization vulnerability in Stylemix MasterStudy LMS masterstudy-lms-learning-management-system allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MasterStudy LMS: from n/a through <= 3.6.20.

Affected products

• Stylemix Masterstudy Lms: up to and including 3.6.20

Published 2025-09-22. Last modified 2026-06-17.