CVE-2025-53209: Themeisle Masteriyo Lms Pro

Critical severity, CVSS 9.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Incorrect Privilege Assignment vulnerability in Themeisle Masteriyo LMS PRO allows Privilege Escalation. This issue affects Masteriyo LMS PRO: from n/a through 2.20.0.

Affected products

• Themeisle Masteriyo Lms Pro: up to and including 2.20.0

Published 2026-06-02. Last modified 2026-07-22.