CVE-2026-6038: Vehicle Showroom Management SQLi Flaw

CVE-2026-6038 Overview

A SQL injection vulnerability has been identified in code-projects Vehicle Showroom Management System 1.0. This vulnerability affects the /util/RegisterCustomerFunction.php file, where improper handling of the BRANCH_ID argument allows attackers to inject malicious SQL commands. The attack can be performed remotely over the network, and an exploit for this vulnerability is publicly available.

Critical Impact
Remote attackers can exploit this SQL injection vulnerability to manipulate database queries, potentially leading to unauthorized data access, data modification, or data exfiltration from the Vehicle Showroom Management System.

Affected Products

code-projects Vehicle Showroom Management System 1.0

Discovery Timeline

2026-04-10 - CVE-2026-6038 published to NVD
2026-04-13 - Last updated in NVD database

Technical Details for CVE-2026-6038

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 component resides in the RegisterCustomerFunction.php file, which processes customer registration requests for the Vehicle Showroom Management System.

The vulnerability occurs when user-supplied input via the BRANCH_ID parameter is incorporated into SQL queries without proper sanitization or parameterization. This allows an attacker to craft malicious input that alters the intended SQL query structure, enabling arbitrary SQL command execution against the backend database.

As a network-accessible vulnerability with no authentication requirements, any remote attacker can potentially exploit this flaw to extract sensitive customer information, modify dealership records, or potentially gain further access to the underlying database server depending on database permissions and configurations.

Root Cause

The root cause of this vulnerability is the failure to properly sanitize or parameterize user input before incorporating it into SQL queries. The RegisterCustomerFunction.php script accepts the BRANCH_ID parameter and directly concatenates or interpolates this value into database queries without implementing prepared statements or input validation.

This is a classic SQL injection pattern where developers trust user-supplied data and fail to treat it as potentially malicious. Without proper escaping, parameterized queries, or input validation, special SQL characters and keywords in the user input can break out of the intended query context and execute arbitrary SQL commands.

Attack Vector

The attack vector is network-based, requiring no authentication or user interaction. An attacker can exploit this vulnerability by sending crafted HTTP requests to the /util/RegisterCustomerFunction.php endpoint with a maliciously crafted BRANCH_ID parameter value.

The exploitation process involves identifying the injection point in the BRANCH_ID parameter, determining the SQL query structure through error-based or blind SQL injection techniques, and then crafting payloads to extract data, bypass authentication, or manipulate database records. Since the exploit is publicly available, attackers have ready access to working exploitation techniques. For detailed technical information about this vulnerability, refer to the GitHub CVE Issue Discussion and the VulDB Vulnerability Entry.

Detection Methods for CVE-2026-6038

Indicators of Compromise

Unusual or malformed requests to /util/RegisterCustomerFunction.php containing SQL syntax characters such as single quotes, semicolons, or SQL keywords in the BRANCH_ID parameter
Database error messages appearing in web server logs or application responses indicating SQL syntax errors
Unexpected database queries or query patterns in database audit logs
Signs of data exfiltration or unauthorized database access in system logs

Detection Strategies

Implement Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in HTTP requests
Enable detailed logging for the web application and monitor for requests containing SQL injection payloads targeting the BRANCH_ID parameter
Configure database query logging and establish baseline query patterns to detect anomalous SQL commands
Deploy intrusion detection systems (IDS) with signatures for SQL injection attack patterns

Monitoring Recommendations

Monitor HTTP access logs for suspicious requests to /util/RegisterCustomerFunction.php with unusual parameter values
Set up alerts for database errors that may indicate SQL injection attempts
Review application logs for failed authentication attempts or unauthorized data access patterns
Implement real-time alerting for any successful exploitation indicators

How to Mitigate CVE-2026-6038

Immediate Actions Required

Restrict access to the Vehicle Showroom Management System to trusted networks only until a patch is applied
Implement input validation on the BRANCH_ID parameter to accept only expected numeric or alphanumeric values
Deploy a Web Application Firewall (WAF) with SQL injection protection rules enabled
Review and audit database permissions to ensure the application uses least-privilege database accounts

Patch Information

No official vendor patch information is currently available for this vulnerability. Organizations should monitor the code-projects website for security updates. In the absence of an official patch, implementing the workarounds and mitigation strategies listed below is strongly recommended.

For additional vulnerability details and community discussion, refer to:

Workarounds

Modify the RegisterCustomerFunction.php file to use prepared statements or parameterized queries for all database interactions involving the BRANCH_ID parameter
Implement strict input validation that rejects any non-numeric characters if BRANCH_ID should only contain numeric values
Place the application behind a reverse proxy with SQL injection filtering capabilities
Consider temporarily disabling the customer registration functionality if it is not business-critical until proper remediation can be implemented

bash

# Example WAF rule to block SQL injection attempts (ModSecurity)
SecRule ARGS:BRANCH_ID "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection Attempt Detected in BRANCH_ID',\
    log,\
    auditlog"