CVE-2025-63513
📋 TL;DR
Hospital Management System v4 has an Insecure Direct Object Reference (IDOR) vulnerability in appointment cancellation functionality. This allows attackers to cancel appointments they don't own by manipulating object references. All users of Hospital Management System v4 are affected.
💻 Affected Systems
- kishan0725 Hospital Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could cancel all appointments in the system, causing complete disruption of hospital operations and potential patient harm from missed critical appointments.
Likely Case
Malicious users cancel specific appointments they target, causing operational disruption and patient inconvenience.
If Mitigated
With proper authorization checks, only appointment owners or authorized staff can cancel appointments, preventing unauthorized access.
🎯 Exploit Status
Exploit requires authenticated access but minimal technical skill. Public GitHub repository contains proof-of-concept.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Check GitHub issues for community fixes or implement workarounds.
🔧 Temporary Workarounds
Implement Authorization Checks
allAdd server-side authorization checks to verify user has permission to cancel specific appointments
Manual code modification required - no single command
Use Indirect Reference Maps
allReplace direct object references with indirect references that require authorization lookup
Manual code modification required - no single command
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to detect and block IDOR patterns
- Enable detailed logging of all appointment cancellation attempts and monitor for unauthorized access
🔍 How to Verify
Check if Vulnerable:
Test if you can cancel another user's appointment by modifying appointment ID parameter in cancellation requestCheck Version:
Check system configuration or about page for version informationVerify Fix Applied:
Verify that attempting to cancel another user's appointment returns authorization error📡 Detection & Monitoring
Log Indicators:
- Multiple failed authorization attempts for appointment cancellation
- User canceling appointments not in their schedule
Network Indicators:
- HTTP requests with manipulated appointment IDs in cancellation endpoints
SIEM Query:
source="web_logs" AND (uri="*/cancel_appointment*" OR uri="*/delete_appointment*") AND status=200 AND user_id!=appointment_owner_id