CVE-2024-25801 - SKINsoft S-Museum 7.02.3 Cross-site Scripting (XSS) Vulnerability via Filename of an Uploaded File

In the previous CVE-2024-25802, we saw that SKINsoft S-Museum 7.02.3 had a security vulnerability that allowed attackers to perform Cross-site Scripting (XSS) attacks by uploading a file with malicious content. Now, we've discovered another vulnerability (CVE-2024-25801) in the same application. But this time, the attack payload is in the name (not the content) of the file being uploaded. In this post, we will discuss this vulnerability and show you how to exploit it.

First, create a file with any content and save it with the following filename

"><script>alert(1)</script><"

This file has an XSS payload in its name, which will be executed when it's uploaded to the S-Museum system. The alert(1) function is used here as a simple example, but more complex attacks can be crafted with different payloads.

Step 2: Upload the malicious file

Login to the S-Museum platform and navigate to the file upload section. Upload the malicious file created in Step 1, and save the changes.

Step 3: Triggering the XSS

Any user who views the list of uploaded files will now inadvertently trigger the XSS payload. The alert(1) function will execute, displaying a pop-up message with the number 1. While this example is benign, it demonstrates the potential harm a more malicious payload could inflict, such as stealing user data or redirecting users to harmful websites.

To mitigate this vulnerability, developers should follow these recommendations

1. Validate filenames during the file upload process. Ensure that uploaded filenames only contain safe characters and do not include HTML tags or JavaScript code.

2. Escape user input when displaying filenames on the web interface. By properly escaping and sanitizing user input, the risk of XSS attacks can be minimized.

3. Implement a secure Content Security Policy (CSP) that stops unauthorized JavaScript execution in the web application. A strong CSP policy will help protect users from XSS attacks.

You can learn more about this vulnerability and related CVEs from the following sources

- National Vulnerability Database (NVD) - CVE-2024-25801
- Exploit Database - CVE-2024-25801

Remember, always be aware of the software you use and apply the necessary security measures to minimize risks and ensure the safety of your valuable data.

Timeline

Published on: 02/22/2024 05:15:09 UTC
Last modified on: 02/22/2024 19:07:27 UTC