CVE-2025-50486
📋 TL;DR
This vulnerability allows attackers to hijack user sessions in PHPGurukul Car Rental Project v3.0 due to improper session invalidation in the password update component. Attackers can maintain access to authenticated sessions even after password changes, affecting all users of the vulnerable application.
💻 Affected Systems
- PHPGurukul Car Rental Project
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain persistent unauthorized access to user accounts, potentially compromising sensitive data, performing unauthorized actions, or escalating privileges within the application.
Likely Case
Attackers hijack active user sessions to access personal information, modify reservations, or perform unauthorized transactions within the car rental system.
If Mitigated
Limited impact with proper session management controls, but still exposes users to credential theft and unauthorized access attempts.
🎯 Exploit Status
Exploitation requires initial session access but is straightforward once obtained. Public proof-of-concept available in GitHub repository.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: http://phpgurukul.com
Restart Required: No
Instructions:
1. Check vendor website for updates. 2. If no patch, implement workarounds. 3. Modify update-password.php to properly invalidate sessions.
🔧 Temporary Workarounds
Manual Session Invalidation Fix
allModify update-password.php to destroy and regenerate session IDs upon password change
Edit /carrental/update-password.php to add: session_regenerate_id(true); session_destroy();
🧯 If You Can't Patch
- Implement additional authentication factors for sensitive operations
- Monitor for unusual session activity and implement session timeout policies
🔍 How to Verify
Check if Vulnerable:
Test if session persists after password change by logging in, changing password, then checking if old session still worksCheck Version:
Check application version in admin panel or configuration filesVerify Fix Applied:
After applying fix, verify that old sessions are invalidated immediately after password changes📡 Detection & Monitoring
Log Indicators:
- Multiple concurrent sessions from same user
- Password change events without session termination
- Unusual session duration
Network Indicators:
- Repeated authentication attempts
- Session cookie reuse across different IPs
SIEM Query:
source="web_logs" AND (event="password_change" AND NOT event="session_destroy")