What is CVE-2025-53209?

CVE-2025-53209 is a critical-severity vulnerability in Themeisle Masteriyo Lms Pro, classified under Incorrect Privilege Assignment. CVSS score: 9.8/10. Published 2026-06-02.

How severe is CVE-2025-53209?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Privilege escalation in Themeisle Masteriyo Lms Pro

CVE-2025-53209

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.

EPSS: 0.000 (7.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Themeisle Masteriyo Lms Pro — versions n/a

Weakness classification (CWE)

CWE-266 — Incorrect Privilege Assignment

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2025-53209?: CVE-2025-53209 is a critical-severity vulnerability in Themeisle Masteriyo Lms Pro, classified under Incorrect Privilege Assignment. CVSS score: 9.8/10. Published 2026-06-02.
How severe is CVE-2025-53209?: Critical severity. CVSS v3 base score is 9.8 out of 10.