CVE-2025-63453 identifies a critical SQL Injection vulnerability in the Car-Booking-System-PHP version 1.0, located in the /carlux/contact.php script. SQL Injection (CWE-89) vulnerabilities occur when untrusted input is improperly sanitized and directly included in SQL queries, allowing attackers to manipulate the database query execution. In this case, the vulnerability is remotely exploitable over the network without requiring authentication or user interaction, as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:N). Successful exploitation can lead to full compromise of the backend database, including unauthorized data disclosure, modification, or deletion, and potentially complete system takeover if the database is linked to other critical infrastructure. The absence of a patch or mitigation link suggests that the vulnerability is either newly disclosed or not yet addressed by the vendor. Although no active exploits have been reported, the high CVSS score (9.8) and the nature of SQL Injection make this a high-risk vulnerability that attackers could weaponize rapidly. The vulnerability's presence in a booking system used for automotive or travel services increases the attractiveness of targets due to the sensitive personal and financial data involved. The technical details confirm the vulnerability's publication status and the assignment of a CVE identifier, ensuring it is recognized and trackable within vulnerability management systems.

For European organizations, the impact of CVE-2025-63453 could be severe. Compromise of booking systems can lead to exposure of personally identifiable information (PII), payment details, and business-sensitive data, resulting in regulatory penalties under GDPR and loss of customer trust. The integrity of booking records may be altered, causing operational disruptions and financial losses. Availability could also be affected if attackers delete or corrupt database contents, leading to service outages. Organizations in the automotive, travel, and hospitality sectors are particularly at risk due to their reliance on such booking platforms. Additionally, the breach of such systems could be leveraged for further lateral movement within corporate networks, amplifying the damage. The critical severity and ease of exploitation mean that attackers can quickly weaponize this vulnerability, increasing the urgency for European entities to assess their exposure and implement mitigations.

Immediate mitigation steps include conducting a thorough code audit of the /carlux/contact.php script to identify and remediate unsafe SQL query constructions. Developers should replace dynamic SQL queries with parameterized queries or prepared statements to prevent injection. Input validation and sanitization should be enforced on all user-supplied data, especially in web forms. Deploying a Web Application Firewall (WAF) with SQL Injection detection rules can provide a temporary protective layer while patches are developed. Organizations should monitor logs for suspicious database query patterns and unauthorized access attempts. If possible, isolate the affected system from critical network segments to limit potential lateral movement. Regular backups of the database should be maintained to enable recovery in case of data corruption or deletion. Finally, organizations should engage with the software vendor for official patches or updates and apply them promptly once available.