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flashChat 4.7.8 Cross Site Scripting Vulnerability



/*\ Flashchat 4.7.8 /*\

Date of written Advisory: February 04, 2007

Product: Flash Chat =< 4.7.8

Vendor: http://tufat.com/

Description:  flashChat is a highly customizable PHP/MySQL based chat room 
script that is easily integrated into a website and mimics IRC in it's command 
structure

Exploit(s) / Vulnerability(ies): flashChat is vulnerable to Cross Site 
Scripting in info.php when the 'add room' function is enabled, which is a 
default setting and therefore very common.  The follow block of code shows 
variables being displayed without any filtration:
<td><?$room['name']?></td>

PoC(s): create a new channel with the following in the title: 
<script>alert('test')</script> and use the "who's online" feature on the HTML 
login page.  This could obviously be used for cookie stealing and other 
malicious attacks.

Vendor Status:  Vendor was not informed before publication.

Solution: The vendor has yet to publish a solution for the exploit.  There is 
an unofficial patch on binaryloc's homepage.

Credits: 
binaryloc

binaryloc[at]gmail[dot]com

http://binary.copyleftwriting.org