Overview
A Cross-Site Request Forgery (CSRF) vulnerability has been identified in Windu CMS. Specifically, the file uploading functionality in version 4.1 is susceptible to this attack. CVE-2025-59114 has been assigned to track this issue. An attacker can exploit this flaw by crafting a malicious website that, when visited by an authenticated Windu CMS user, will automatically trigger the upload of a malicious file to the server. While only version 4.1 has been tested and confirmed as vulnerable, other versions may also be affected.
Technical Details
The vulnerability stems from a lack of sufficient CSRF protection in the Windu CMS file upload process. An attacker can create a seemingly harmless webpage containing malicious HTML. This HTML can include a form that automatically submits to the Windu CMS server’s file upload endpoint. If a logged-in Windu CMS user visits this malicious webpage, their browser will automatically send the crafted request to the Windu CMS server, effectively bypassing authentication checks due to the existing session cookie. This allows the attacker to upload arbitrary files, potentially including PHP scripts or other malicious content.
CVSS Analysis
At the time of writing, a CVSS score has not been assigned to CVE-2025-59114. The severity is currently marked as N/A due to the lack of vendor response and a complete risk assessment. However, the potential impact suggests a high level of risk.
Possible Impact
Successful exploitation of this CSRF vulnerability can lead to a number of serious consequences:
- Arbitrary File Upload: Attackers can upload malicious files, such as PHP scripts, that can be executed on the server.
- Website Defacement: Uploaded malicious files can be used to deface the website.
- Remote Code Execution: In the worst-case scenario, attackers can achieve remote code execution, gaining complete control over the server.
- Data Breach: Attackers could potentially access sensitive data stored on the server.
Mitigation and Patch Steps
Unfortunately, due to the lack of vendor response, a formal patch is not yet available. However, several mitigation steps can be taken to reduce the risk:
- Implement CSRF Protection: If you have access to the Windu CMS codebase, implement robust CSRF protection measures. This typically involves generating a unique token for each user session and validating this token on every sensitive form submission (including file uploads).
- Restrict File Upload Types: Configure the server to only allow uploads of specific file types (e.g., images, documents) and block the upload of executable files like PHP scripts.
- Regular Security Audits: Conduct regular security audits of your Windu CMS installation to identify and address potential vulnerabilities.
- Web Application Firewall (WAF): Deploy a web application firewall (WAF) to detect and block malicious requests, including those attempting to exploit CSRF vulnerabilities. Configure the WAF with rules to inspect file uploads and block suspicious content.
- Monitor Server Logs: Regularly monitor server logs for unusual activity, such as unexpected file uploads or access attempts.
- Upgrade: If the vendor releases a patch, upgrade to the latest version as soon as possible. Check the Windu CMS official website for updates.
