CVE-2025-13323: Simple Pizza Ordering System SQLi Flaw

CVE-2025-13323 Overview

A SQL injection vulnerability has been discovered in code-projects Simple Pizza Ordering System version 1.0. The vulnerability exists in the /listorder.php file where improper handling of the ID argument allows attackers to inject malicious SQL queries. This flaw can be exploited remotely without authentication, potentially allowing unauthorized access to the underlying database, data manipulation, or information disclosure.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive data, modify database contents, or potentially escalate to broader system compromise through database-level attacks.

Affected Products

• Carmelo Simple Pizza Ordering System 1.0

Discovery Timeline

• 2025-11-18 - CVE-2025-13323 published to NVD
• 2025-11-19 - Last updated in NVD database

Technical Details for CVE-2025-13323

Vulnerability Analysis

This vulnerability is classified as SQL Injection (CWE-89) with an underlying Injection flaw (CWE-74). The vulnerable endpoint /listorder.php fails to properly sanitize or parameterize the ID argument before incorporating it into SQL queries. This allows attackers to manipulate the query structure by injecting malicious SQL code through the ID parameter.

The vulnerability is accessible via the network and requires no authentication or user interaction to exploit. An attacker can craft malicious HTTP requests containing SQL injection payloads that, when processed by the vulnerable application, execute arbitrary SQL commands against the backend database. This can result in unauthorized data access, data modification, or data deletion.

Root Cause

The root cause of this vulnerability is improper input validation and lack of parameterized queries in the /listorder.php file. The application directly concatenates user-supplied input from the ID parameter into SQL queries without proper sanitization, escaping, or the use of prepared statements. This fundamental secure coding oversight allows attackers to break out of the intended query context and inject their own SQL commands.

Attack Vector

The attack vector for CVE-2025-13323 is network-based, meaning attackers can exploit this vulnerability remotely over the internet without requiring local access to the target system. The vulnerability can be triggered by sending crafted HTTP requests to the /listorder.php endpoint with a malicious ID parameter value.

A typical exploitation scenario involves an attacker crafting a request where the ID parameter contains SQL metacharacters and commands designed to alter the query logic. For example, injecting union-based payloads to extract data from other database tables, boolean-based payloads to enumerate database contents character by character, or time-based payloads to confirm injection points when direct output is not visible.

The exploit has been publicly disclosed, increasing the risk of opportunistic attacks against unpatched installations.

Detection Methods for CVE-2025-13323

Indicators of Compromise

• Unusual or malformed requests to /listorder.php containing SQL metacharacters such as single quotes, double dashes, or UNION statements
• Database logs showing unexpected queries, failed query syntax errors, or unauthorized data access patterns
• Web server access logs with anomalous ID parameter values containing encoded or obfuscated SQL injection payloads
• Unexpected database modifications, new user accounts, or data exfiltration indicators

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in HTTP requests targeting /listorder.php
• Enable detailed logging for database queries and monitor for suspicious query patterns or SQL errors
• Implement application-level input validation monitoring to flag requests with unexpected characters in the ID parameter
• Use intrusion detection systems (IDS) with SQL injection signature detection capabilities

Monitoring Recommendations

• Review web server logs regularly for requests containing SQL injection indicators targeting the vulnerable endpoint
• Monitor database audit logs for unauthorized SELECT, UPDATE, DELETE, or administrative operations
• Set up alerts for unusual data access patterns or bulk data retrieval from the orders database
• Track error rates and types from the application to identify potential exploitation attempts

How to Mitigate CVE-2025-13323

Immediate Actions Required

• Restrict access to /listorder.php or take the Simple Pizza Ordering System offline until a fix can be implemented
• Implement Web Application Firewall rules to block SQL injection attempts targeting the vulnerable endpoint
• Review database logs for signs of prior exploitation and potential data breach
• Consider network segmentation to limit database exposure if the application must remain accessible

Patch Information

As of the last update on 2025-11-19, no official vendor patch has been released for this vulnerability. Administrators should monitor the Code Projects website and the GitHub repository for security updates. Organizations using this software in production should consider implementing the workarounds below or migrating to a more actively maintained solution.

Workarounds

• Modify the /listorder.php source code to use prepared statements with parameterized queries for all database interactions
• Implement strict input validation on the ID parameter, allowing only numeric values
• Deploy a WAF or reverse proxy to filter and sanitize incoming requests before they reach the application
• Restrict database user privileges to minimum required permissions, preventing administrative operations through SQL injection

# Example: Restrict access to the vulnerable endpoint via Apache .htaccess
# Place in the application root directory
<Files "listorder.php">
    Order Deny,Allow
    Deny from all
    # Allow only trusted IP addresses
    Allow from 192.168.1.0/24
</Files>