Vulnerability · Published Sep 19, 2026 · Assigned by Wordfence

CVE-2026-89333Tutor LMS <= 4.0.8 - Insecure Direct Object Reference to Authenticated (Subscriber+) Sensitive Information Exposure via 'student_id' Parameter

Medium 6.5

In plain English

A medium-severity authorization bypass via user-controlled key in Tutor LMS – eLearning and online course solution from themeum. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.5%top 59.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
themeum	Tutor LMS – eLearning and online course solution	0 – through 4.0.8

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

In plain English

Official description

Affected products (as reported)

References