CVE-2025-6903
📋 TL;DR
This is a critical SQL injection vulnerability in code-projects Car Rental System 1.0 that allows remote attackers to execute arbitrary SQL commands via the ID parameter in the /admin/approve.php file. Attackers can potentially steal, modify, or delete database contents, including sensitive customer and administrative data. All users running the vulnerable version are affected.
💻 Affected Systems
- code-projects Car Rental System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, authentication bypass, and potential remote code execution if database functions allow it.
Likely Case
Unauthorized data access and extraction of sensitive information including customer records, payment details, and administrative credentials.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only allowing data viewing without modification.
🎯 Exploit Status
Exploit details are publicly disclosed, making weaponization likely. Attack requires access to the admin interface but not necessarily authentication if other vulnerabilities exist.
🛠️ 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 proper input validation and parameterized queries.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to sanitize the ID parameter before processing
Modify /admin/approve.php to validate ID parameter as integer: if(!is_numeric($_GET['ID'])) { die('Invalid input'); }
Web Application Firewall Rule
allBlock SQL injection patterns targeting the approve.php endpoint
WAF rule: deny requests to /admin/approve.php containing SQL keywords in parameters
🧯 If You Can't Patch
- Restrict access to /admin/ directory using IP whitelisting or authentication
- Implement database-level protections: use least privilege accounts, enable query logging
🔍 How to Verify
Check if Vulnerable:
Test the /admin/approve.php endpoint with SQL injection payloads like: /admin/approve.php?ID=1' OR '1'='1Check Version:
Check software version in documentation or configuration filesVerify Fix Applied:
Test with same payloads after implementing fixes - should return error or no database interaction📡 Detection & Monitoring
Log Indicators:
- Unusual database queries from web server
- Multiple failed login attempts followed by approve.php access
- SQL syntax errors in web server logs
Network Indicators:
- HTTP requests to /admin/approve.php with SQL keywords in parameters
- Unusual database traffic patterns
SIEM Query:
source="web_server" AND uri="/admin/approve.php" AND (param="ID" AND value MATCHES "'.*OR.*|'.*AND.*|'.*UNION.*")