CVE-2025-63453: Car-booking-system-php SQLi Vulnerability

CVE-2025-63453 Overview

CVE-2025-63453 is a critical SQL Injection vulnerability discovered in Car-Booking-System-PHP v.1.0. The vulnerability exists in the /carlux/contact.php endpoint, allowing unauthenticated attackers to inject malicious SQL queries through user-supplied input. This type of vulnerability can lead to complete database compromise, unauthorized data access, and potentially full system takeover.

Critical Impact

This SQL Injection vulnerability allows remote attackers to execute arbitrary SQL commands without authentication, potentially exposing all database contents, modifying data, or gaining unauthorized administrative access to the application.

Affected Products

• Car-Booking-System-PHP version 1.0
• All installations using the vulnerable /carlux/contact.php endpoint

Discovery Timeline

• 2025-11-03 - CVE-2025-63453 published to NVD
• 2025-11-07 - Last updated in NVD database

Technical Details for CVE-2025-63453

Vulnerability Analysis

The SQL Injection vulnerability in Car-Booking-System-PHP stems from improper handling of user input in the contact.php file located under the /carlux/ directory. The application fails to properly sanitize or parameterize user-supplied data before incorporating it into SQL queries, allowing attackers to manipulate database operations.

This vulnerability can be exploited remotely over the network without requiring any authentication or user interaction. A successful attack could result in complete confidentiality, integrity, and availability compromise of the underlying database and potentially the host system.

Root Cause

The root cause of CVE-2025-63453 is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command). The contact.php script directly concatenates user input into SQL query strings without implementing prepared statements, parameterized queries, or adequate input validation and sanitization mechanisms.

Attack Vector

The attack vector for this vulnerability is network-based, targeting the /carlux/contact.php endpoint. Attackers can craft malicious HTTP requests containing SQL injection payloads in form fields or URL parameters processed by the contact form. The vulnerability requires no authentication or privileges, making it highly accessible to remote attackers.

The SQL injection allows attackers to bypass authentication, extract sensitive database information including user credentials, modify or delete database records, and potentially execute operating system commands if database permissions allow.

For additional technical details regarding this vulnerability, refer to the GitHub CVE Research Repository.

Detection Methods for CVE-2025-63453

Indicators of Compromise

• Unusual database queries containing SQL syntax characters such as single quotes ('), double dashes (--), or UNION SELECT statements in web server access logs
• Unexpected database errors or query execution failures logged by the application
• Anomalous traffic patterns to /carlux/contact.php with suspicious parameter values
• Evidence of data exfiltration or unauthorized database access in database audit logs

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block common SQL injection patterns targeting the contact.php endpoint
• Monitor application logs for SQL syntax errors or unusual query patterns
• Deploy intrusion detection systems (IDS) with signatures for SQL injection attack payloads
• Enable database query logging and audit trails to identify suspicious query execution

Monitoring Recommendations

• Enable verbose logging on the web server for requests to /carlux/contact.php
• Configure database activity monitoring to alert on unusual query patterns or privilege escalation attempts
• Set up real-time alerting for error responses from the contact form endpoint
• Monitor for bulk data access patterns that may indicate data exfiltration attempts

How to Mitigate CVE-2025-63453

Immediate Actions Required

• Remove or disable the /carlux/contact.php endpoint until a patch is applied
• Implement a Web Application Firewall (WAF) with SQL injection protection rules
• Restrict database user privileges to the minimum required for application functionality
• Review database logs for signs of prior exploitation and conduct forensic analysis if compromise is suspected

Patch Information

No official vendor patch has been confirmed at the time of this writing. Organizations using Car-Booking-System-PHP v.1.0 should contact the project maintainers or monitor the GitHub CVE Research Repository for updates and remediation guidance.

Workarounds

• Implement input validation using whitelisting to reject any non-alphanumeric characters in form fields
• Modify the contact.php code to use prepared statements with parameterized queries instead of string concatenation
• Deploy a reverse proxy or WAF to filter incoming requests for SQL injection payloads
• Temporarily disable the contact form functionality until proper security controls are implemented

# Example WAF rule to block SQL injection attempts (ModSecurity)
SecRule ARGS "@detectSQLi" \
    "id:1001,\
    phase:2,\
    block,\
    msg:'SQL Injection Attack Detected',\
    logdata:'Matched Data: %{MATCHED_VAR} found within %{MATCHED_VAR_NAME}',\
    severity:'CRITICAL'"