CVE-2026-5634: SQL Injection in Car Rental Project

Successful exploitation of CVE-2026-5634 allows an attacker to inject arbitrary SQL code into database queries executed by the Car Rental Project. This can lead to a wide range of malicious activities, including unauthorized access to sensitive customer data such as names, addresses, payment information, and rental history. An attacker could also modify or delete data, potentially disrupting the car rental service. Given the publicly available exploit, the blast radius is significant, as attackers with limited technical skills can leverage it to compromise vulnerable systems. The potential for data exfiltration and service disruption makes this a high-priority vulnerability to address.

1. Reserved2026-04-05
2. Published2026-04-06
3. Modified2026-04-07
4. EPSS updated2026-04-13

While a direct patch for CVE-2026-5634 is pending, several mitigation steps can reduce the risk of exploitation. First, implement strict input validation and sanitization on all user-supplied data, particularly the 'fname' parameter in /bookcar.php. Consider using parameterized queries or prepared statements to prevent SQL injection attacks. A Web Application Firewall (WAF) configured to detect and block SQL injection attempts can provide an additional layer of defense. Monitor database logs for suspicious SQL queries that might indicate an ongoing attack. If possible, temporarily disable the vulnerable /bookcar.php endpoint until a patch is available. After implementing these mitigations, verify their effectiveness by attempting to reproduce the vulnerability with a safe test payload.