CVE-2026-5017: Simple Food Order System SQL Injection Flaw

CVE-2026-5017 Overview

A SQL injection vulnerability has been discovered in code-projects Simple Food Order System 1.0. This security flaw impacts the /all-tickets.php file within the Parameter Handler component. By manipulating the Status argument, an attacker can inject malicious SQL code to compromise the database. The attack can be initiated remotely, and the exploit has been released to the public, increasing the risk of active exploitation.

Critical Impact

This SQL injection vulnerability allows unauthenticated remote attackers to manipulate database queries through the Status parameter, potentially leading to unauthorized data access, modification, or deletion.

Affected Products

• Carmelo Simple Food Order System 1.0

Discovery Timeline

• 2026-03-28 - CVE-2026-5017 published to NVD
• 2026-04-02 - Last updated in NVD database

Technical Details for CVE-2026-5017

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 flaw exists in the /all-tickets.php endpoint, which processes user-supplied input through the Status parameter without proper sanitization or parameterized queries.

When user input is directly concatenated into SQL queries without proper escaping or prepared statements, attackers can inject arbitrary SQL commands. This allows them to bypass authentication, extract sensitive data, modify records, or potentially gain further access to the underlying system.

The vulnerability is remotely exploitable over the network and requires no authentication, making it accessible to any attacker who can reach the application. The publicly disclosed exploit increases the likelihood that threat actors will attempt to leverage this weakness.

Root Cause

The root cause of this vulnerability is improper input validation and lack of parameterized queries in the /all-tickets.php file. The application directly incorporates user-supplied data from the Status parameter into SQL statements without sanitizing special characters or using prepared statements with bound parameters. This classic SQL injection pattern allows attackers to break out of the intended query structure and inject malicious SQL commands.

Attack Vector

The attack vector is network-based, requiring no user interaction or prior authentication. An attacker can craft a malicious HTTP request to the /all-tickets.php endpoint, manipulating the Status parameter to include SQL injection payloads. Successful exploitation can result in unauthorized access to database contents, data manipulation, or denial of service.

The vulnerability can be exploited through standard web request manipulation techniques. Attackers typically craft payloads that escape the original query context and append additional SQL commands. Common techniques include UNION-based attacks for data extraction, time-based blind injection for data exfiltration, and stacked queries for data modification.

For technical details on the exploit, refer to the GitHub CVE Issue Report.

Detection Methods for CVE-2026-5017

Indicators of Compromise

• Unusual SQL syntax patterns in web server logs, particularly in requests to /all-tickets.php
• HTTP requests containing SQL keywords like UNION, SELECT, DROP, or -- in the Status parameter
• Unexpected database query errors or timeouts that may indicate injection attempts
• Signs of data exfiltration or unauthorized database modifications

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in incoming requests
• Monitor application logs for requests to /all-tickets.php containing suspicious characters or SQL syntax
• Deploy database activity monitoring to detect unusual query patterns or unauthorized data access
• Use intrusion detection systems (IDS) configured with SQL injection detection signatures

Monitoring Recommendations

• Enable detailed logging for the Simple Food Order System application and associated database
• Configure alerting for repeated failed login attempts or unusual database access patterns
• Review web server access logs regularly for anomalous requests to vulnerable endpoints
• Implement real-time monitoring for database query anomalies and potential data exfiltration

How to Mitigate CVE-2026-5017

Immediate Actions Required

• Restrict access to the /all-tickets.php endpoint until a patch is applied
• Implement input validation on the Status parameter to allow only expected values
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules
• Review database user permissions to enforce least privilege principles

Patch Information

No official vendor patch information is currently available. Users should monitor the Code Projects Security Resources page for updates. For vulnerability details, refer to the VulDB Vulnerability #353902 entry.

Workarounds

• Implement server-side input validation to restrict the Status parameter to a whitelist of allowed values
• Use parameterized queries or prepared statements in the affected PHP file to prevent SQL injection
• Deploy network-level access controls to limit which IP addresses can access the administrative endpoints
• Consider temporarily disabling the affected functionality until a proper fix is implemented

# Example: Apache .htaccess rule to restrict access to vulnerable endpoint
<Files "all-tickets.php">
    # Restrict access to trusted IP addresses only
    Require ip 192.168.1.0/24
    Require ip 10.0.0.0/8
</Files>