CVE-2025-14642
📋 TL;DR
CVE-2025-14642 is an unrestricted file upload vulnerability in Computer Laboratory System 1.0 that allows remote attackers to upload malicious files via the technical_staff_pic.php file. This affects all installations of Computer Laboratory System 1.0 that have the vulnerable component accessible. Attackers can exploit this to upload webshells or other malicious files to compromise the system.
💻 Affected Systems
- Computer Laboratory 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
Attackers upload webshells to gain persistent access, deface websites, or use the server for malicious activities like hosting phishing pages.
If Mitigated
If proper file type validation and upload restrictions are in place, impact is limited to potential DoS through file upload exhaustion.
🎯 Exploit Status
Exploit details are publicly available on GitHub, making this easy to weaponize. No authentication required for exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: https://code-projects.org/
Restart Required: No
Instructions:
No official patch available. Consider implementing workarounds or replacing the software.
🔧 Temporary Workarounds
Restrict file uploads via web server configuration
allBlock access to technical_staff_pic.php or restrict file upload functionality at the web server level
# Apache: Add to .htaccess
<Files "technical_staff_pic.php">
Order Deny,Allow
Deny from all
</Files>
# Nginx: Add to server block
location ~ /technical_staff_pic\.php$ {
deny all;
return 403;
}
Implement file upload validation
allAdd server-side validation to restrict file types, extensions, and content
# Example PHP validation snippet
$allowed_types = ['image/jpeg', 'image/png', 'image/gif'];
$allowed_ext = ['jpg', 'jpeg', 'png', 'gif'];
if (!in_array($_FILES['image']['type'], $allowed_types) ||
!in_array(pathinfo($_FILES['image']['name'], PATHINFO_EXTENSION), $allowed_ext)) {
die('Invalid file type');
}
🧯 If You Can't Patch
- Implement WAF rules to block malicious file uploads targeting technical_staff_pic.php
- Disable file upload functionality entirely if not required for business operations
🔍 How to Verify
Check if Vulnerable:
Attempt to upload a non-image file (e.g., .php, .txt) to technical_staff_pic.php and check if it's accepted without validationCheck Version:
Check software version in admin panel or configuration filesVerify Fix Applied:
Test file upload with various file types - only image files should be accepted, and uploaded files should be properly validated📡 Detection & Monitoring
Log Indicators:
- Multiple failed/successful upload attempts to technical_staff_pic.php
- Uploads of non-image file types
- Large number of file upload requests in short time
Network Indicators:
- POST requests to technical_staff_pic.php with file uploads
- Unusual file types in upload requests
SIEM Query:
source="web_logs" AND uri="/technical_staff_pic.php" AND method="POST" AND (file_extension="php" OR file_extension="exe" OR file_extension="sh")