UnknownSec Bypass 403

: /proc/self/root/var/www/jpsagrisolution/cpanel/ [ drwxr-xr-x ]
name : delete_dealer.php <?php include "../panelassets/config.php"; if(isset($_GET['id'])) { $id=$_GET['id']; $sql="DELETE FROM dealertb WHERE dealerid={$id}"; if(mysqli_query($conn,$sql)){ header("Location: {$hostnamecp}/list_dealer.php"); }else{ echo "<p style='color:red, margin: 10px 0px'>Record can not be deleted.</p>"; } } mysqli_close($conn); ?>