What is CVE-2026-89333?

CVE-2026-89333 is a medium-severity vulnerability in Themeum Tutor Lms – Elearning And Online Course Solution, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-09-19.

How severe is CVE-2026-89333?

Medium severity. CVSS v3 base score is 6.5 out of 10.

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

CVE-2026-89333

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.0.8 via the 'student_id' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to disclose the email address and Tutor profile phone number of arbitrary WordPress users, including Administrators, by iterating over user IDs via the student_id parameter.

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Themeum Tutor Lms – Elearning And Online Course Solution

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

Frequently asked questions

What is CVE-2026-89333?: CVE-2026-89333 is a medium-severity vulnerability in Themeum Tutor Lms – Elearning And Online Course Solution, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-09-19.
How severe is CVE-2026-89333?: Medium severity. CVSS v3 base score is 6.5 out of 10.