To update content with Script tag in kohana2.3

Open the file from "/system/libraries/input.php"
To remove unwanted tag for below
//$data = preg_replace('#</(?:applet|b(?:ase|gsound|link)|embed|frame(?:set)?|i(?:frame|layer)|l(?:ayer|ink)|meta|object|s(?:cript|tyle)|title|xml)[^>]+>#i', '', $data);
$data = preg_replace('#</(?:applet|b(?:ase|gsound)|meta|xml)[^>]+>#i', '', $data);