phpMyFAQ 2.9.0 – Persistent Cross-Site Scripting

• Exploit Database
• 138 阅读

• 作者： Kacper Szurek
  日期： 2016-06-10
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/39913/
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  # Exploit Title: phpMyFAQ 2.9.0 Stored XSS # Date: 09-06-2016 # Software Link: http://www.phpmyfaq.de/ # Exploit Author: Kacper Szurek # Contact: http://twitter.com/KacperSzurek # Website: http://security.szurek.pl/ # Category: webapps 1. Description PHP <code>filter_input()</code> function with <code>FILTER_VALIDATE_URL</code> flag is used to validate url inside <code>savefaq</code> functionality.   But this function doesn’t protect against XSS.   http://security.szurek.pl/phpmyfaq-290-stored-xss.html   2. Proof of Concept   By default every user can propose faq entries.   When admin activate article using http://phpmyfaq/admin/?action=view url or records.defaultActivation option is enabled, XSS will be visible on entry page:   http://phpmyfaq/index.php?action=artikel&cat=%cat_id%&id=%article_id%&artlang=pl   For exploitation use folowing url inside Link for this FAQ field:   http://example.com/"><script>alert("xss")</script>   3. Solution: Update to version 2.9.1