Auth bypass in Themeum Tutor Lms – Elearning And Online Course Solution

CVE-2025-13935

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized course completion in all versions up to, and including, 3.9.2. This is due to missing enrollment verification in the 'mark_course_complete' function. This makes it possible for authenticated attackers, with subscriber level access and above, to mark any course as completed.

Vulnerability class: Broken Access Control

EPSS: 0.002 (10.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-13935?
CVE-2025-13935 is a medium-severity vulnerability in Themeum Tutor Lms – Elearning And Online Course Solution, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-01-09.
How severe is CVE-2025-13935?
Medium severity. CVSS v3 base score is 4.3 out of 10.