CVE-2025-13411: Retro Basketball Shoes Store RCE Flaw

CVE-2025-13411 Overview

CVE-2025-13411 is an Unrestricted File Upload vulnerability affecting Campcodes Retro Basketball Shoes Online Store version 1.0. The vulnerability exists in the administrative functionality of the file /admin/admin_football.php, where manipulation of the product_image argument allows attackers to upload arbitrary files without proper validation. This security flaw enables remote attackers with administrative access to potentially upload malicious files, including web shells or other executable content, to the vulnerable server.

Critical Impact

Attackers with privileged access can exploit improper file upload restrictions to upload malicious content, potentially leading to remote code execution, system compromise, and data theft on affected e-commerce installations.

Affected Products

• Campcodes Retro Basketball Shoes Online Store version 1.0

Discovery Timeline

• 2025-11-19 - CVE-2025-13411 published to NVD
• 2026-02-24 - Last updated in NVD database

Technical Details for CVE-2025-13411

Vulnerability Analysis

This vulnerability stems from insufficient input validation and improper access control (CWE-284) combined with unrestricted file upload capabilities (CWE-434). The affected component /admin/admin_football.php accepts file uploads via the product_image parameter without adequately verifying the file type, extension, or content. While the attack requires high-level privileges (administrative access), it can be executed remotely over the network with low complexity.

The vulnerability allows authenticated administrators to bypass intended file upload restrictions, potentially uploading executable files such as PHP web shells. Once uploaded, these malicious files could be accessed directly through the web server, leading to arbitrary code execution within the context of the web application.

Root Cause

The root cause of CVE-2025-13411 is improper input validation on file uploads in the product_image parameter. The application fails to implement adequate server-side validation to restrict uploaded file types to expected image formats (e.g., JPEG, PNG, GIF). Additionally, there appears to be no content-type verification, file signature checking, or filename sanitization, allowing attackers to upload files with dangerous extensions like .php or .phtml.

Attack Vector

The attack is executed remotely over the network and requires authenticated access to the administrative panel. An attacker with administrative credentials can navigate to the /admin/admin_football.php page and submit a crafted HTTP POST request containing a malicious file in the product_image field. Without proper validation, the server accepts and stores the file in a web-accessible directory. The attacker can then access the uploaded file directly via its URL, triggering execution of any embedded malicious code.

The vulnerability mechanism involves crafting a multipart/form-data request to the vulnerable endpoint, where the product_image field contains a malicious PHP file instead of a legitimate image. The server processes this upload without validating that the file is actually an image, storing it in an accessible uploads directory. For technical details and proof of concept, refer to the GitHub Issue documentation.

Detection Methods for CVE-2025-13411

Indicators of Compromise

• Unexpected files with executable extensions (.php, .phtml, .asp, .jsp) appearing in product image upload directories
• Web server access logs showing requests to unusual files in upload directories that weren't present before
• File modification timestamps on uploaded files that don't correlate with legitimate administrative activity
• Presence of web shell signatures or encoded PHP code within files in upload directories

Detection Strategies

• Monitor file uploads to administrative endpoints, specifically /admin/admin_football.php, for non-image file extensions
• Implement file integrity monitoring (FIM) on web-accessible upload directories to detect unauthorized file additions
• Deploy web application firewall (WAF) rules to inspect multipart uploads and block files with suspicious content types or extensions
• Review HTTP POST requests to admin endpoints for anomalous content-type headers that don't match expected image formats

Monitoring Recommendations

• Configure logging to capture all file upload events with associated metadata including filename, size, and uploading user
• Set up alerts for file uploads containing executable code signatures or suspicious file headers
• Monitor for unusual admin panel access patterns or login attempts that may precede exploitation
• Implement real-time scanning of uploaded files using antivirus or malware detection solutions

How to Mitigate CVE-2025-13411

Immediate Actions Required

• Restrict access to the administrative panel (/admin/) to trusted IP addresses only using network-level controls
• Review and audit all files in product image upload directories for suspicious content or executable files
• Implement additional authentication controls such as multi-factor authentication for administrative access
• Consider temporarily disabling file upload functionality until a patch is available

Patch Information

As of the last update, no official patch has been released by Campcodes for this vulnerability. Administrators should monitor the Campcodes website for security updates. Additional technical details about this vulnerability are available in the VulDB entry #332938 and the associated GitHub Issue.

Workarounds

• Implement server-side validation to check file MIME types, magic bytes, and extensions before accepting uploads
• Rename uploaded files to randomly generated names and remove original extensions
• Store uploaded files outside the web root directory and serve them through a secure download handler
• Configure the web server to prevent execution of scripts in upload directories using .htaccess rules or server configuration

# Apache configuration to prevent script execution in uploads directory
# Add to .htaccess in the uploads folder or to Apache configuration
<Directory "/var/www/html/uploads">
    # Disable PHP execution
    php_flag engine off
    
    # Deny access to files with dangerous extensions
    <FilesMatch "\.(php|phtml|php3|php4|php5|phps|phar|asp|aspx|jsp)$">
        Require all denied
    </FilesMatch>
    
    # Force download of all files instead of execution
    ForceType application/octet-stream
    Header set Content-Disposition attachment
</Directory>