if ($_POST['delete_me'] == "yes") {
mysql_query("DELETE FROM wp_users WHERE id='".$_POST['user_ID']."'");
echo '<script type="text/javascript">window.location = "'.get_option('siteurl') . '/wp-login.php"</script>';
}
This is stupid as $_POST[‘user_ID’] is never sanitized and if I pass 1 OR 1 as the ID, the plugin will happily delete ALL users from the database.