CVE-2026-0584: Product Reservation System SQLi Vulnerability

CVE-2026-0584 Overview

A SQL injection vulnerability has been identified in code-projects Online Product Reservation System version 1.0. This security weakness affects the file app/products/left_cart.php, where improper handling of the ID parameter allows attackers to inject malicious SQL statements. The vulnerability can be exploited remotely by authenticated users, potentially compromising database integrity and confidentiality.

Critical Impact

Remote attackers with low privileges can exploit this SQL injection vulnerability to extract sensitive data, modify database contents, or potentially gain unauthorized access to the underlying system through the vulnerable left_cart.php endpoint.

Affected Products

• code-projects Online Product Reservation System 1.0
• PHP-based web applications using the vulnerable left_cart.php component

Discovery Timeline

• 2026-01-05 - CVE-2026-0584 published to NVD
• 2026-01-08 - Last updated in NVD database

Technical Details for CVE-2026-0584

Vulnerability Analysis

This SQL injection vulnerability (classified under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component) exists in the Online Product Reservation System's shopping cart functionality. The vulnerability stems from the application's failure to properly sanitize user-supplied input in the ID parameter before incorporating it into SQL queries.

When a user interacts with the left_cart.php file, the ID argument is passed directly to database queries without adequate validation or parameterization. This allows an attacker to craft malicious input that modifies the intended SQL query structure, potentially enabling unauthorized data access, modification, or deletion.

The attack can be executed remotely over the network and requires only low-level authentication privileges, making it accessible to any authenticated user of the system. Proof-of-concept exploit code has been publicly disclosed, increasing the risk of active exploitation.

Root Cause

The root cause of this vulnerability is the lack of proper input validation and parameterized queries in the left_cart.php file. The application directly concatenates user-supplied ID parameter values into SQL statements without sanitization, escaping, or the use of prepared statements. This classic injection vulnerability pattern allows attackers to break out of the intended query context and execute arbitrary SQL commands.

Attack Vector

The attack vector is network-based, requiring the attacker to send crafted HTTP requests to the vulnerable left_cart.php endpoint. The exploitation flow typically involves:

1. An authenticated attacker identifies the vulnerable ID parameter in the cart functionality
2. The attacker crafts a malicious request containing SQL injection payloads in the ID parameter
3. The vulnerable application processes the request without proper sanitization
4. The injected SQL code executes against the backend database
5. The attacker can extract data, modify records, or escalate their access

Technical details and proof-of-concept information are available in the GitHub CVE Description and VulDB entry.

Detection Methods for CVE-2026-0584

Indicators of Compromise

• Unusual SQL syntax patterns in web server access logs targeting left_cart.php
• Abnormal database query patterns or errors originating from the cart functionality
• Unexpected data exfiltration attempts or database access from the web application
• Error messages revealing SQL syntax or database structure information

Detection Strategies

• Implement web application firewall (WAF) rules to detect SQL injection patterns in the ID parameter
• Monitor application logs for requests to left_cart.php containing suspicious characters such as single quotes, semicolons, or SQL keywords
• Deploy database activity monitoring to identify unusual query patterns or unauthorized data access
• Use intrusion detection systems with signatures for common SQL injection attack patterns

Monitoring Recommendations

• Enable detailed logging for all requests to app/products/left_cart.php
• Configure alerts for database errors or exceptions originating from the cart module
• Monitor for unusual patterns of database read operations that could indicate data exfiltration
• Review authentication logs for suspicious activity from accounts accessing the vulnerable endpoint

How to Mitigate CVE-2026-0584

Immediate Actions Required

• Restrict network access to the Online Product Reservation System to trusted users only
• Implement a web application firewall with SQL injection protection rules
• Consider temporarily disabling the cart functionality if not business-critical until a patch is applied
• Review database access logs for signs of prior exploitation

Patch Information

No official vendor patch information is currently available. Organizations should monitor the Code Projects Resource Hub for updates and security advisories. Given the nature of the vulnerability, administrators may need to manually patch the left_cart.php file by implementing parameterized queries.

Workarounds

• Implement input validation to ensure the ID parameter contains only expected numeric values
• Use prepared statements with parameterized queries when handling user-supplied input in database operations
• Deploy a web application firewall configured to block SQL injection attack patterns
• Apply the principle of least privilege to database accounts used by the application

# Configuration example - Apache ModSecurity rule to detect SQL injection attempts
SecRule ARGS:ID "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection attempt detected in ID parameter',\
    log,\
    auditlog"