CVE-2026-6036: Vehicle Showroom Management SQLi Flaw

CVE-2026-6036 Overview

A SQL Injection vulnerability has been identified in code-projects Vehicle Showroom Management System version 1.0. The vulnerability exists in an unknown function within the file /util/VehicleDetailsFunction.php, where improper handling of the VEHICLE_ID argument allows attackers to inject malicious SQL queries. This flaw can be exploited remotely without authentication, enabling unauthorized database access, data manipulation, or extraction of sensitive information. The exploit has been made public and could be used by threat actors.

Critical Impact

Remote SQL Injection vulnerability allows unauthenticated attackers to manipulate database queries through the VEHICLE_ID parameter, potentially compromising the entire database backend.

Affected Products

• code-projects Vehicle Showroom Management System 1.0
• /util/VehicleDetailsFunction.php component

Discovery Timeline

• 2026-04-10 - CVE-2026-6036 published to NVD
• 2026-04-13 - Last updated in NVD database

Technical Details for CVE-2026-6036

Vulnerability Analysis

This vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), commonly known as Injection. The vulnerable endpoint in /util/VehicleDetailsFunction.php fails to properly sanitize the VEHICLE_ID parameter before incorporating it into SQL queries. When user-supplied input is directly concatenated into database queries without proper parameterization or escaping, attackers can craft malicious payloads that alter the query's intended behavior.

The network-accessible nature of this vulnerability means attackers can exploit it remotely without requiring any prior authentication or user interaction. Successful exploitation could allow attackers to read sensitive data from the database, modify or delete records, or potentially execute administrative operations depending on the database privileges of the application.

Root Cause

The root cause of this vulnerability is the lack of proper input validation and parameterized queries in the VehicleDetailsFunction.php file. The VEHICLE_ID parameter is directly used in SQL queries without sanitization, escaping, or the use of prepared statements. This classic SQL Injection pattern occurs when developers concatenate user input directly into SQL query strings rather than using secure coding practices such as parameterized queries or stored procedures.

Attack Vector

The attack vector is network-based, requiring no authentication or user interaction. An attacker can craft malicious HTTP requests targeting the vulnerable endpoint with a manipulated VEHICLE_ID parameter. By injecting SQL metacharacters and commands into this parameter, the attacker can modify the structure of the underlying SQL query.

For example, an attacker could append SQL syntax to the VEHICLE_ID parameter to bypass authentication checks, extract data from other tables using UNION-based injection, or use blind SQL injection techniques to enumerate the database structure. The vulnerability can be triggered through standard web requests, making it accessible to anyone who can reach the application over the network. For technical details regarding the exploitation method, refer to the GitHub CVE Issue Discussion.

Detection Methods for CVE-2026-6036

Indicators of Compromise

• Unusual database queries containing SQL metacharacters (single quotes, double dashes, semicolons) in the VEHICLE_ID parameter
• Web access logs showing requests to /util/VehicleDetailsFunction.php with abnormally long or encoded parameter values
• Database error messages indicating SQL syntax errors that may be exposed to users
• Unexpected database read operations or data exfiltration patterns

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in HTTP parameters
• Monitor web server access logs for requests containing common SQL injection payloads targeting the VehicleDetailsFunction.php endpoint
• Deploy database activity monitoring to detect anomalous query patterns or unauthorized data access
• Use SentinelOne's application security monitoring to identify exploitation attempts against vulnerable PHP endpoints

Monitoring Recommendations

• Enable detailed logging for the Vehicle Showroom Management System application, particularly for database query execution
• Configure alerts for database errors or exceptions that may indicate injection attempts
• Monitor network traffic for suspicious patterns targeting the /util/VehicleDetailsFunction.php endpoint
• Review database audit logs for unexpected SELECT, UPDATE, DELETE, or administrative operations

How to Mitigate CVE-2026-6036

Immediate Actions Required

• Restrict network access to the Vehicle Showroom Management System to trusted IP addresses only until a patch is available
• Implement input validation on the VEHICLE_ID parameter to accept only expected numeric values
• Deploy a Web Application Firewall with SQL injection protection rules in front of the application
• Consider taking the application offline if it contains sensitive data and cannot be adequately protected

Patch Information

No official vendor patch is currently available in the referenced advisories. System administrators should monitor Code Projects for security updates. Additional vulnerability details can be found at VulDB Vulnerability #356617.

Workarounds

• Modify the VehicleDetailsFunction.php file to use parameterized queries or prepared statements for all database operations involving the VEHICLE_ID parameter
• Implement strict input validation to ensure VEHICLE_ID accepts only numeric values, rejecting any special characters
• Deploy application-level filtering to sanitize all user inputs before they reach database query functions
• Use database user accounts with minimal required privileges to limit the impact of successful SQL injection attacks

# Example: Apache mod_rewrite rule to block common SQL injection patterns
# Add to .htaccess or Apache configuration
RewriteEngine On
RewriteCond %{QUERY_STRING} (\%27)|(\')|(\-\-)|(\%23)|(#) [NC,OR]
RewriteCond %{QUERY_STRING} (union|select|insert|update|delete|drop|alter) [NC]
RewriteRule .* - [F,L]