CVE-2026-89333CWE-639

CVE-2026-89333

Medium · published September 19, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
39.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00464 · 39.2th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-09-19T07:17Z
References (7)
EPSS history
Timeline
  • 20 SEP 03:24Z
    EPSS moved — → 0%
    epss
  • 19 SEP 02:27Z
    Tutor LMS <= 4.0.8 - Insecure Direct Object Reference to Authenticated (Subscriber+) Sensitive Information Exposure via 'student_id' Parameter
    cvelistv5