CVE-2024-56997
📋 TL;DR
PHPGurukul Hospital Management System 4.0 contains a stored cross-site scripting (XSS) vulnerability in the doctor portal's email parameter. This allows attackers to inject malicious scripts that execute when legitimate users view the affected page. Hospital staff and administrators using the system are potentially affected.
💻 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 on behalf of authenticated users, or compromise administrator accounts leading to full system takeover.
Likely Case
Session hijacking, credential theft, or defacement of the doctor portal interface affecting multiple users who view the malicious content.
If Mitigated
Limited impact with proper input validation and output encoding, potentially only affecting the specific user viewing the malicious content.
🎯 Exploit Status
Exploit requires access to doctor portal (authenticated). Public proof-of-concept demonstrates stored XSS via email parameter.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: No
Instructions:
No official patch available. Implement input validation and output encoding in /doctor/index.php for the email parameter.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd server-side validation to sanitize email input before processing
Modify /doctor/index.php to validate email format and sanitize input using htmlspecialchars() or similar functions
Content Security Policy
allImplement CSP headers to restrict script execution
Add header("Content-Security-Policy: default-src 'self'") to PHP files
🧯 If You Can't Patch
- Restrict access to doctor portal to trusted IP addresses only
- Implement web application firewall (WAF) rules to block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Test by submitting a payload like <script>alert('XSS')</script> in the email field of /doctor/index.php and check if it executes when viewing the pageCheck Version:
Check system version in admin panel or readme filesVerify Fix Applied:
Attempt the same XSS payload and verify it's properly sanitized (shows as text, not executed)📡 Detection & Monitoring
Log Indicators:
- Unusual email entries containing script tags or JavaScript code
- Multiple failed login attempts to doctor portal
Network Indicators:
- HTTP requests with script tags in POST parameters
- Unusual outbound connections from hospital system
SIEM Query:
source="web_logs" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=") AND uri_path="/doctor/index.php"