CVE-2025-8171
📋 TL;DR
This critical vulnerability in code-projects Document Management System 1.0 allows remote attackers to upload arbitrary files via the /insert.php endpoint. Attackers can potentially upload malicious files like webshells to gain unauthorized access or execute code. All systems running the affected software are vulnerable.
💻 Affected Systems
- code-projects Document Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through webshell upload leading to remote code execution, data theft, and lateral movement within the network.
Likely Case
Unauthorized file upload leading to webshell deployment, allowing attackers to execute arbitrary commands, deface websites, or steal sensitive documents.
If Mitigated
File upload attempts are blocked or logged, preventing successful exploitation while maintaining system functionality.
🎯 Exploit Status
Exploit details are publicly available on GitHub, making this easily exploitable by attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://code-projects.org/
Restart Required: No
Instructions:
No official patch available. Consider workarounds or migrating to alternative software.
🔧 Temporary Workarounds
Restrict File Upload Endpoint
allBlock or restrict access to the vulnerable /insert.php endpoint using web server configuration or firewall rules.
# Apache: Add to .htaccess
<Files "insert.php">
Order Deny,Allow
Deny from all
</Files>
# Nginx: Add to server block
location = /insert.php {
deny all;
return 403;
}
Implement File Upload Validation
allAdd server-side validation to restrict uploaded file types to safe extensions only.
# Example PHP validation snippet
$allowed_extensions = array('pdf', 'doc', 'docx', 'txt');
$file_extension = strtolower(pathinfo($_FILES['uploaded_file']['name'], PATHINFO_EXTENSION));
if (!in_array($file_extension, $allowed_extensions)) {
die('Invalid file type');
}
🧯 If You Can't Patch
- Disable or remove the /insert.php file from the web server directory.
- Implement a Web Application Firewall (WAF) with file upload protection rules.
🔍 How to Verify
Check if Vulnerable:
Check if /insert.php exists and accepts file uploads without proper validation. Test by attempting to upload a file with a malicious extension.Check Version:
Check the software version in the application interface or configuration files.Verify Fix Applied:
Verify that /insert.php is no longer accessible or that file upload validation now properly restricts dangerous file types.📡 Detection & Monitoring
Log Indicators:
- Multiple POST requests to /insert.php with unusual file extensions
- Large file uploads to /insert.php endpoint
- Successful uploads of executable files like .php, .jsp, .asp
Network Indicators:
- Unusual outbound connections from the web server after file uploads
- Traffic patterns indicating webshell communication
SIEM Query:
source="web_server" AND (url="/insert.php" AND method="POST") AND (file_extension="php" OR file_extension="jsp" OR file_extension="asp")