Tiny Guest Book Cross Site Scripting

`# Exploit Title: Tinyguestbook XSS  
# Date: 01/03/12  
# Author: G13  
# Software Link: http://code.google.com/p/tinyguestbook/  
# Category: webapps (php)  
#  
  
##### Vulnerability #####  
  
There is no sanitation on the input of the msg variable. This allows   
malicious scripts to be added. This is a stored XSS  
  
##### Vendor Notification #####  
  
12/23/11 - Vendor Notified.  
12/27/11 - Vendor email.  
01/03/12 - No response, disclosure  
  
##### Affected Variables #####  
  
Msg=[XSS]  
  
##### Exploit #####  
  
The script can be added right in the page, there is no filtering of   
input.  
`