CVE-2025-15199
📋 TL;DR
This vulnerability allows remote attackers to upload arbitrary files via the image parameter in the userprofile.php file of College Notes Uploading System 1.0. Attackers can potentially upload malicious files like webshells to gain unauthorized access or execute code. All users running the vulnerable version are affected.
💻 Affected Systems
- College Notes Uploading System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or ransomware deployment.
Likely Case
Webshell upload allowing persistent backdoor access, file manipulation, and lateral movement within the system.
If Mitigated
Limited impact if file uploads are restricted to authenticated users and file types are strictly validated.
🎯 Exploit Status
Exploit details are publicly disclosed on GitHub. Attack requires access to the upload functionality, which typically requires authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
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
allImplement server-side validation to only allow specific file types (e.g., .jpg, .png) and check file signatures.
# Example PHP validation snippet:
$allowed_types = ['image/jpeg', 'image/png'];
if (!in_array($_FILES['image']['type'], $allowed_types)) {
die('Invalid file type');
}
Rename uploaded files
allRename uploaded files to random names without extensions or store them outside the web root.
# Example PHP code:
$new_filename = uniqid() . '.tmp';
move_uploaded_file($_FILES['image']['tmp_name'], '/path/outside/webroot/' . $new_filename);
🧯 If You Can't Patch
- Disable the userprofile.php upload functionality entirely by removing or restricting access to the file.
- Implement a web application firewall (WAF) to block malicious upload attempts and monitor for exploit patterns.
🔍 How to Verify
Check if Vulnerable:
Check if /dashboard/userprofile.php exists and accepts file uploads via the image parameter without proper validation.Check Version:
Check the software version in the application's admin panel or configuration files.Verify Fix Applied:
Test uploading a non-image file (e.g., .php, .exe) to verify it's rejected or sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to /dashboard/userprofile.php, especially non-image files or large uploads.
- HTTP POST requests with file uploads containing suspicious extensions or content.
Network Indicators:
- Traffic spikes to the upload endpoint, anomalous outbound connections post-upload.
SIEM Query:
source="web_logs" AND uri="/dashboard/userprofile.php" AND method="POST" AND (file_extension IN ("php", "exe", "sh") OR content_type NOT IN ("image/jpeg", "image/png"))