---
id: CVE-2026-89333
title: >-
  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 co…
summary: >-
  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 co…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-639
vendor: themeum
product: Tutor LMS – eLearning and online course solution
affected:
  - tutor_lms_elearning_and_online_course_solution <= 4.0.8
published: '2026-09-19'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T13:33:33.387'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89333'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/classes/Template.php#L503
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/classes/Utils.php#L2841
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/templates/user-profile.php#L132
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/templates/user-profile.php#L137
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/templates/user-profile.php#L21
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3700174%40tutor&new=3700174%40tutor
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/244051ef-5357-4b16-b690-46c8fea56847?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
epss: 0.00464
epssPercentile: 0.37484
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-19T13:20:14.974283Z'
ingestedAt: '2026-09-19T02:56:32.978Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.