CVE-2024-56990
📋 TL;DR
PHPGurukul Hospital Management System 4.0 contains stored cross-site scripting vulnerabilities in patient history and admin view pages. Attackers can inject malicious scripts that execute when legitimate users access these pages. This affects all users of the vulnerable system, particularly healthcare staff accessing patient records.
💻 Affected Systems
- PHPGurukul Hospital Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, redirect users to malicious sites, perform actions as authenticated users, or compromise patient data confidentiality.
Likely Case
Session hijacking leading to unauthorized access to patient records and system functionality.
If Mitigated
Limited impact with proper input validation and output encoding in place.
🎯 Exploit Status
Public proof-of-concept available on GitHub. Exploitation requires authentication to inject XSS payloads.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
No official patch available. Implement input validation and output encoding in /view-medhistory.php and /admin/view-patient.php files.
🔧 Temporary Workarounds
Input Validation and Output Encoding
allImplement proper input validation and HTML entity encoding for user-supplied data in affected files
Edit PHP files to add htmlspecialchars() or similar encoding functions around user inputs
Content Security Policy
allImplement Content Security Policy headers to restrict script execution
Add header("Content-Security-Policy: default-src 'self'") to PHP files
🧯 If You Can't Patch
- Restrict access to affected pages using web application firewall rules
- Implement strict input validation at application layer for all user inputs
🔍 How to Verify
Check if Vulnerable:
Test by injecting XSS payloads into patient data fields and checking if scripts execute when viewing affected pagesCheck Version:
Check system version in admin panel or configuration filesVerify Fix Applied:
Attempt to inject XSS payloads and verify they are properly encoded/escaped in output📡 Detection & Monitoring
Log Indicators:
- Unusual script tags or JavaScript in patient data fields
- Multiple failed XSS attempts in logs
Network Indicators:
- Malicious script injection in HTTP POST requests to patient data endpoints
SIEM Query:
source="web_logs" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=") AND ("view-medhistory.php" OR "view-patient.php")