---
id: CVE-2026-93779
title: >-
  Tutor LMS <= 4.1.2 - Insecure Direct Object Reference to Authenticated
  (Subscriber+) Sensitive Information Exposure via REST API Endpoints
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, 4.1.2 via the init_routes due to missing validation on a user
  controlled ke…
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'
cvssSource: cna
cwe:
  - CWE-639
vendor: themeum
product: Tutor LMS – eLearning and online course solution
affected:
  - tutor_lms_elearning_and_online_course_solution <= 4.1.2
published: '2026-11-07'
updated: '2026-11-07'
sourceUpdated: '2026-11-07T04:27:13.948Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-93779'
references:
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/b0c8b586-784e-43a4-8bb8-c7cb771476a4?source=cve
  - url: >-
      https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/RestAPI.php#L460
  - url: >-
      https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/RestAPI.php#L376
  - url: >-
      https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/RestAPI.php#L418
  - url: >-
      https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/restapi/REST_Course.php#L303
  - url: >-
      https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/restapi/REST_Quiz.php#L209
  - url: >-
      https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/restapi/REST_Author.php#L43
  - url: >-
      https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/restapi/RestAuth.php#L331
  - url: >-
      https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/RestAPI.php#L135
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3748228%40tutor&new=3748228%40tutor
tags:
  - cve.org
ingestedAt: '2026-11-07T05:10:28.998Z'
epss: 0.00406
epssPercentile: 0.35139
---

## 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, 4.1.2 via the init_routes due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to read paid course lesson and topic content without enrollment, retrieve quiz answer keys including the is_correct field before attempting a quiz, and enumerate the email addresses, usernames, and registration data of other users including instructors and administrators. Exploitation requires that the attacker hold a valid Tutor LMS API key/secret pair, which is issued to subscriber-level users through the plugin's API key management feature.

## Affected

- `tutor_lms_elearning_and_online_course_solution <= 4.1.2`

## Remediation

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