CVE-2026-0576: Product Reservation System SQLi Vulnerability

CVE-2026-0576 Overview

A SQL injection vulnerability has been identified in code-projects Online Product Reservation System 1.0. The vulnerability exists in the /handgunner-administrator/prod.php file within the Parameter Handler component. By manipulating the cat, price, name, model, or serial parameters, an attacker can inject malicious SQL queries. This vulnerability can be exploited remotely, and a public exploit is available, increasing the risk of active exploitation.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract, modify, or delete data from the backend database, potentially compromising the entire reservation system and sensitive customer information.

Affected Products

• code-projects Online Product Reservation System 1.0
• /handgunner-administrator/prod.php Parameter Handler component

Discovery Timeline

• 2026-01-04 - CVE-2026-0576 published to NVD
• 2026-01-08 - Last updated in NVD database

Technical Details for CVE-2026-0576

Vulnerability Analysis

This SQL injection vulnerability (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component) affects the product management functionality in the Online Product Reservation System's administrative interface. The vulnerable endpoint at /handgunner-administrator/prod.php fails to properly sanitize user-supplied input before incorporating it into SQL queries.

The application accepts multiple parameters—cat, price, name, model, and serial—that are directly concatenated into database queries without adequate input validation or parameterized query implementation. This allows attackers to break out of the intended query structure and execute arbitrary SQL commands.

Since the attack can be initiated remotely without authentication requirements, any network-accessible deployment of this system is at immediate risk. The public availability of exploitation details further amplifies the urgency for remediation.

Root Cause

The root cause of this vulnerability is the lack of proper input sanitization and the use of dynamic SQL query construction. The application directly incorporates user-controlled parameters into SQL statements without using prepared statements or parameterized queries. This classic injection flaw pattern allows malicious input to alter the intended query logic.

Attack Vector

The attack vector is network-based, requiring no user interaction or prior authentication. An attacker can craft malicious HTTP requests to the /handgunner-administrator/prod.php endpoint with specially crafted values in the cat, price, name, model, or serial parameters. These payloads can include SQL syntax that modifies query behavior, enabling data extraction through UNION-based injection, boolean-based blind injection, or time-based blind injection techniques.

The vulnerability allows for low-impact compromise of confidentiality, integrity, and availability of the affected system. Attackers may extract sensitive database contents, modify product records, or disrupt service availability depending on database permissions and configuration.

Detection Methods for CVE-2026-0576

Indicators of Compromise

• Unusual SQL error messages in web server logs referencing /handgunner-administrator/prod.php
• HTTP requests containing SQL syntax characters (single quotes, UNION, SELECT, OR 1=1) in the cat, price, name, model, or serial parameters
• Database query logs showing malformed or unexpected queries from the application
• Unexpected data modifications or extractions in product-related database tables

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect SQL injection patterns in request parameters
• Configure intrusion detection systems to alert on requests to /handgunner-administrator/prod.php containing suspicious payloads
• Enable detailed logging for the administrative endpoint and monitor for anomalous request patterns
• Deploy database activity monitoring to detect unauthorized query patterns

Monitoring Recommendations

• Monitor web application logs for requests to the vulnerable endpoint with encoded or obfuscated SQL payloads
• Set up alerts for database errors or exceptions originating from the Online Product Reservation System
• Track authentication attempts and access patterns to administrative functions
• Review database audit logs for unauthorized data access or modification attempts

How to Mitigate CVE-2026-0576

Immediate Actions Required

• Restrict network access to the /handgunner-administrator/prod.php endpoint using firewall rules or web server configuration
• Implement a Web Application Firewall with SQL injection detection rules
• If possible, disable the vulnerable product management functionality until a patch is applied
• Audit database logs for evidence of prior exploitation attempts

Patch Information

No official vendor patch is currently available for this vulnerability. Organizations using the code-projects Online Product Reservation System 1.0 should consult the Code Projects Security Resources for updates. Additional technical details and proof-of-concept information can be found in the GitHub CVE Documentation. The vulnerability has been tracked in VulDB #339460.

Workarounds

• Implement input validation to sanitize the cat, price, name, model, and serial parameters by rejecting or escaping SQL metacharacters
• Modify the application code to use prepared statements with parameterized queries instead of dynamic SQL construction
• Place the administrative interface behind VPN access or IP-based access controls to limit exposure
• Consider deploying a reverse proxy with request filtering capabilities to block malicious payloads

# Example Apache configuration to restrict access to vulnerable endpoint
<Location "/handgunner-administrator/">
    Require ip 10.0.0.0/8
    Require ip 192.168.0.0/16
</Location>