CVE-2025-6394
📋 TL;DR
This critical SQL injection vulnerability in Simple Online Hotel Reservation System 1.0 allows remote attackers to execute arbitrary SQL commands via the 'firstname' parameter in /add_reserve.php. This can lead to unauthorized data access, modification, or deletion. Any organization using this software with internet exposure is affected.
💻 Affected Systems
- Simple Online Hotel Reservation System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including theft of sensitive guest information, financial data, and administrative credentials; potential for full system takeover and data destruction.
Likely Case
Unauthorized access to guest reservation data, personal information, and potential privilege escalation to administrative functions.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only error messages or partial data exposure.
🎯 Exploit Status
Exploit details are publicly available; SQL injection via firstname parameter is straightforward for attackers with basic skills.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://code-projects.org/
Restart Required: No
Instructions:
No official patch available. Consider migrating to alternative software or implementing custom fixes with parameterized queries.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to sanitize firstname parameter and other inputs
Modify /add_reserve.php to implement parameterized queries or input sanitization
WAF Rule Implementation
allDeploy web application firewall rules to block SQL injection patterns
Add WAF rule: Detect and block SQL keywords in firstname parameter
🧯 If You Can't Patch
- Isolate the system from internet access and restrict to internal network only
- Implement strict network segmentation and monitor all database queries from the application
🔍 How to Verify
Check if Vulnerable:
Test /add_reserve.php endpoint with SQL injection payloads in firstname parameter and observe database errors or unexpected behaviorCheck Version:
Check software version in admin panel or configuration filesVerify Fix Applied:
Attempt SQL injection after implementing fixes; successful fix should return proper error handling without database exposure📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts following SQL errors
- Unusual patterns in /add_reserve.php access logs
Network Indicators:
- SQL keywords in HTTP POST parameters
- Unusual database connection patterns from web server
SIEM Query:
source="web_logs" AND uri="/add_reserve.php" AND (firstname CONTAINS "' OR" OR firstname CONTAINS "UNION" OR firstname CONTAINS "SELECT")