CVE-2025-6361: Simple Pizza Ordering System SQLi Flaw

CVE-2025-6361 Overview

A critical SQL Injection vulnerability has been discovered in the Simple Pizza Ordering System version 1.0, developed by code-projects. This vulnerability exists in the /adds.php file and is triggered through manipulation of the userid argument, allowing attackers to inject malicious SQL queries. The attack can be initiated remotely without requiring authentication, making this a significant security concern for any deployment of this application.

Critical Impact

Remote attackers can exploit this SQL Injection vulnerability to manipulate database queries, potentially leading to unauthorized data access, data modification, or complete database compromise.

Affected Products

• Carmelo Simple Pizza Ordering System 1.0

Discovery Timeline

• June 20, 2025 - CVE-2025-6361 published to NVD
• June 26, 2025 - Last updated in NVD database

Technical Details for CVE-2025-6361

Vulnerability Analysis

This vulnerability is classified under CWE-89 (SQL Injection) and CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). The flaw exists in the /adds.php file, where user-supplied input through the userid parameter is not properly sanitized before being incorporated into SQL queries. This allows attackers to craft malicious input that modifies the intended SQL statement logic, potentially bypassing authentication, extracting sensitive data, or manipulating database records.

The vulnerability is particularly dangerous because it can be exploited remotely over the network without requiring any prior authentication or user interaction. An attacker simply needs to send a specially crafted HTTP request to the vulnerable endpoint with a malicious userid parameter value containing SQL injection payloads.

Root Cause

The root cause of this vulnerability is the lack of proper input validation and sanitization of the userid parameter in /adds.php. The application directly incorporates user-supplied input into SQL queries without using parameterized queries or prepared statements. This fundamental secure coding oversight allows attackers to inject arbitrary SQL syntax that gets executed by the database engine.

Attack Vector

The attack is network-based and requires no authentication or user interaction. An attacker can remotely access the vulnerable /adds.php endpoint and manipulate the userid parameter to inject SQL commands. Typical SQL injection techniques such as UNION-based injection, error-based injection, or blind SQL injection can be employed to extract database contents, modify data, or in some cases escalate privileges within the database system.

The vulnerability allows manipulation of database queries through the userid parameter in /adds.php. Attackers can craft malicious requests containing SQL injection payloads such as single quotes, UNION statements, or Boolean-based conditions to manipulate query logic. For detailed technical analysis, refer to the GitHub CVE Issue Discussion and VulDB #313354.

Detection Methods for CVE-2025-6361

Indicators of Compromise

• HTTP requests to /adds.php containing SQL injection patterns in the userid parameter (e.g., single quotes, UNION SELECT statements, OR 1=1 conditions)
• Unusual database query errors in application logs indicating malformed SQL syntax
• Unexpected database access patterns or data exfiltration activity
• Web server logs showing repeated requests to /adds.php with varying userid values

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the /adds.php endpoint
• Monitor application logs for SQL syntax errors that may indicate injection attempts
• Deploy database activity monitoring to detect anomalous query patterns or unauthorized data access
• Use intrusion detection systems with SQL injection signature detection capabilities

Monitoring Recommendations

• Enable detailed logging for all requests to /adds.php including full parameter values
• Configure database audit logging to track all queries executed against the application database
• Set up alerts for unusual database query patterns or error rates
• Monitor for signs of data exfiltration through application responses

How to Mitigate CVE-2025-6361

Immediate Actions Required

• Remove or restrict access to the Simple Pizza Ordering System if deployed in production environments
• Implement Web Application Firewall rules to block SQL injection attempts targeting /adds.php
• Review database permissions and restrict application database user privileges to minimum required access
• Audit database logs for any signs of past exploitation

Patch Information

No official patch is currently available from the vendor. As this is a code-projects educational/demo application, users should consider the system inherently insecure for production use. Organizations using this software should implement code-level fixes by modifying /adds.php to use parameterized queries or prepared statements for all database interactions involving the userid parameter. For additional security resources, refer to Code Projects Security Resources.

Workarounds

• Disable or remove the /adds.php file if the functionality is not required
• Implement input validation to sanitize the userid parameter, rejecting any non-numeric input
• Deploy a Web Application Firewall with SQL injection protection rules
• Use database stored procedures with parameterized inputs instead of dynamic SQL queries

# Example: Block access to vulnerable endpoint via Apache .htaccess
<Files "adds.php">
    Order Deny,Allow
    Deny from all
</Files>