CVE-2026-0578: Product Reservation System SQLi Flaw

CVE-2026-0578 Overview

A SQL injection vulnerability has been identified in code-projects Online Product Reservation System version 1.0. The vulnerability exists in the file /handgunner-administrator/delete.php where the ID parameter is not properly sanitized before being used in SQL queries. This allows remote attackers to manipulate database queries through crafted input, potentially leading to unauthorized data access, modification, or deletion.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to bypass authentication, extract sensitive database information, modify or delete records, and potentially compromise the entire database server.

Affected Products

• code-projects Online Product Reservation System 1.0

Discovery Timeline

• 2026-01-04 - CVE-2026-0578 published to NVD
• 2026-01-08 - Last updated in NVD database

Technical Details for CVE-2026-0578

Vulnerability Analysis

This vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). The affected endpoint /handgunner-administrator/delete.php accepts an ID parameter that is directly incorporated into SQL queries without proper input validation or parameterization.

The vulnerability can be exploited remotely without authentication requirements. When user-supplied input containing SQL metacharacters is passed to the ID parameter, attackers can inject arbitrary SQL commands that the database server will execute. This represents a classic SQL injection pattern where insufficient input sanitization allows query manipulation.

The exploit has been publicly disclosed, increasing the risk of widespread exploitation. Technical details and proof-of-concept information are available through the GitHub PoC repository.

Root Cause

The root cause of this vulnerability is the failure to implement proper input validation and parameterized queries in the /handgunner-administrator/delete.php file. The ID parameter is directly concatenated into SQL statements, allowing attackers to inject malicious SQL code. This represents a fundamental violation of secure coding practices where user input should never be trusted and must always be sanitized or parameterized before use in database operations.

Attack Vector

The attack is network-based, allowing remote exploitation without physical access to the target system. An attacker can craft malicious HTTP requests containing SQL injection payloads in the ID parameter. The attack does not require authentication, making it accessible to any remote attacker who can reach the vulnerable endpoint.

The exploitation technique involves sending specially crafted requests to the vulnerable endpoint with SQL injection payloads embedded in the ID parameter. These payloads can include UNION-based attacks for data extraction, boolean-based blind SQL injection for conditional data retrieval, or time-based blind SQL injection techniques.

For detailed proof-of-concept information, refer to the GitHub PoC Details.

Detection Methods for CVE-2026-0578

Indicators of Compromise

• HTTP requests to /handgunner-administrator/delete.php containing suspicious characters such as single quotes ('), double dashes (--), semicolons (;), or SQL keywords in the ID parameter
• Database error messages in server logs indicating SQL syntax errors from malformed queries
• Unusual database query patterns or unexpected data extraction operations in database audit logs
• Web server logs showing repeated requests with varying ID parameter values typical of automated SQL injection scanning

Detection Strategies

• Deploy a Web Application Firewall (WAF) with rules to detect and block SQL injection patterns in HTTP parameters
• Implement database activity monitoring to identify anomalous query patterns or unauthorized data access
• Enable detailed logging on the web server to capture all requests to administrative endpoints like /handgunner-administrator/
• Use intrusion detection systems (IDS) with signatures for common SQL injection attack patterns

Monitoring Recommendations

• Monitor web application logs for requests containing SQL metacharacters in parameter values
• Set up alerts for database errors that may indicate SQL injection attempts
• Track authentication failures and unauthorized administrative access attempts
• Review database audit logs for unexpected SELECT, UPDATE, or DELETE operations

How to Mitigate CVE-2026-0578

Immediate Actions Required

• Restrict access to the /handgunner-administrator/ directory using IP-based access controls or authentication requirements
• Deploy a Web Application Firewall (WAF) to filter SQL injection attempts targeting the vulnerable endpoint
• Consider taking the application offline if it processes sensitive data until a proper fix is implemented
• Review database permissions to limit the application's database user to only required operations

Patch Information

No official vendor patch has been identified at this time. The vulnerability affects code-projects Online Product Reservation System 1.0. System administrators should consult the Code Projects website for updates and security advisories. Additional tracking information is available through VulDB #339462.

Workarounds

• Implement prepared statements with parameterized queries in the delete.php file to prevent SQL injection
• Add strict input validation to ensure the ID parameter only accepts numeric values
• Deploy network-level controls to restrict access to administrative interfaces
• Implement a Web Application Firewall (WAF) with SQL injection filtering capabilities

# Example Apache configuration to restrict admin access
<Directory "/var/www/html/handgunner-administrator">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Directory>