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

CVE-2026-0548

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized attachment deletion due to a missing capability check on the `delete_existing_user_photo` function in all versions up to, and including, 3.9.4. This makes it possible for authenticated attackers, with subscriber level access and above, to delete arbitrary attachments on the site.

Vulnerability class: Broken Access Control

EPSS: 0.003 (17.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-0548?
CVE-2026-0548 is a medium-severity vulnerability in Themeum Tutor Lms – Elearning And Online Course Solution, classified under Missing Authorization. CVSS score: 5.4/10. Published 2026-01-20.
How severe is CVE-2026-0548?
Medium severity. CVSS v3 base score is 5.4 out of 10.