Zploit 0-Day Shell

:: Editing File: vcard_media_delete.php

<?php
ob_start();
include 'header.php';

/* ===============================
   PATH CONFIG
   =============================== */
define(
    'VCARD_UPLOAD_PATH',
    $_SERVER['DOCUMENT_ROOT'] . '/kreativecrm/uploads/vcard/'
);

/* ===============================
   VALIDATE ID
   =============================== */
if (!isset($_GET['id']) || !is_numeric($_GET['id'])) {
    header("Location: vcard_media_list.php?msg=Invalid Media ID");
    exit;
}

$id = intval($_GET['id']);

/* ===============================
   FETCH MEDIA
   =============================== */
$q = mysqli_query(
    $conn,
    "SELECT id, vcard_id, type, file_path, image_path
     FROM vcard_media
     WHERE id = '$id'"
);

if (!$q || mysqli_num_rows($q) === 0) {
    header("Location: vcard_media_list.php?msg=Media Not Found");
    exit;
}

$row = mysqli_fetch_assoc($q);

/* ===============================
   FETCH VCARD SLUG
   =============================== */
$vcard_q = mysqli_query(
    $conn,
    "SELECT card_slug FROM vcards WHERE id = '{$row['vcard_id']}'"
);

$vcard = mysqli_fetch_assoc($vcard_q);
$slug  = $vcard['card_slug'];

/* ===============================
   MEDIA DIRECTORY
   =============================== */
$media_dir = VCARD_UPLOAD_PATH . $slug . '/media/';

/* ===============================
   DELETE FILES
   =============================== */
if ($row['type'] !== 'video') {

// delete main file
    if (!empty($row['file_path'])) {
        $file = $media_dir . $row['file_path'];
        if (file_exists($file)) {
            unlink($file);
        }
    }

// delete thumbnail
    if (!empty($row['image_path'])) {
        $thumb = $media_dir . $row['image_path'];
        if (file_exists($thumb)) {
            unlink($thumb);
        }
    }
}

/* ===============================
   DELETE DB RECORD
   =============================== */
mysqli_query($conn, "DELETE FROM vcard_media WHERE id = '$id'");

/* ===============================
   REMOVE EMPTY FOLDER
   =============================== */
if (is_dir($media_dir)) {
    $files = glob($media_dir . '*');
    if (!$files) {
        rmdir($media_dir);
    }
}

/* ===============================
   REDIRECT
   =============================== */
header("Location: vcard_media_list.php?msg=Media deleted successfully");
exit;
?>