CVE-2025-6357: Simple Pizza Ordering System SQLi Flaw

CVE-2025-6357 Overview

A SQL injection vulnerability has been identified in the Simple Pizza Ordering System version 1.0 developed by Carmelo. The vulnerability exists in the /paymentportal.php file where the person parameter is not properly sanitized before being used in database queries. This allows remote attackers to manipulate SQL queries and potentially access, modify, or delete sensitive database information.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to bypass authentication, extract sensitive customer and payment data, modify database records, or potentially gain further access to the underlying system.

Affected Products

• Carmelo Simple Pizza Ordering System 1.0
• Systems running /paymentportal.php with the vulnerable person parameter
• Web applications built on the Simple Pizza Ordering System codebase

Discovery Timeline

• 2025-06-20 - CVE-2025-6357 published to NVD
• 2025-06-26 - Last updated in NVD database

Technical Details for CVE-2025-6357

Vulnerability Analysis

This vulnerability is classified as SQL Injection (CWE-89) and more broadly as Injection (CWE-74). The flaw resides in the payment portal functionality where user-supplied input through the person parameter is directly incorporated into SQL queries without proper sanitization or parameterized query implementation.

The exploit has been publicly disclosed and can be launched remotely without requiring authentication. Successful exploitation could allow attackers to read sensitive data from the database, modify or delete existing records, bypass authentication mechanisms, and in some configurations, execute administrative operations on the database server.

The network-based attack vector combined with low attack complexity makes this vulnerability accessible to attackers with basic SQL injection knowledge.

Root Cause

The root cause of this vulnerability is improper input validation and the failure to use parameterized queries or prepared statements in the /paymentportal.php file. The person parameter appears to be directly concatenated into SQL query strings, allowing malicious SQL syntax to be injected and executed by the database engine.

Attack Vector

The vulnerability is exploitable over the network without requiring any privileges or user interaction. An attacker can craft malicious HTTP requests to the /paymentportal.php endpoint with specially crafted values in the person parameter. The injected SQL commands are then executed by the database with the same privileges as the web application's database connection.

Typical attack scenarios include:

• Authentication bypass by injecting SQL logic that always evaluates to true
• Data extraction using UNION-based or blind SQL injection techniques
• Database manipulation through INSERT, UPDATE, or DELETE statement injection
• Potential privilege escalation if the database user has elevated permissions

For detailed technical information about this vulnerability, refer to the GitHub CVE Issue #13 and VulDB Details #313350.

Detection Methods for CVE-2025-6357

Indicators of Compromise

• Unusual or malformed requests to /paymentportal.php containing SQL syntax characters such as single quotes, double dashes, or semicolons in the person parameter
• Database error messages appearing in web server logs or responses indicating SQL syntax errors
• Unexpected database queries or access patterns in database audit logs
• Signs of data exfiltration or unauthorized database modifications

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in HTTP parameters
• Implement application-level logging to capture all requests to /paymentportal.php with full parameter details
• Configure database activity monitoring to alert on unusual query patterns or unauthorized data access
• Use intrusion detection systems (IDS) with signatures for SQL injection attack patterns

Monitoring Recommendations

• Monitor web server access logs for requests containing SQL metacharacters in the person parameter
• Enable database query logging and review for suspicious or malformed queries originating from the web application
• Set up alerts for multiple failed database queries that may indicate injection attempts
• Track application error rates for the payment portal endpoint as a potential indicator of attack activity

How to Mitigate CVE-2025-6357

Immediate Actions Required

• Restrict access to /paymentportal.php until a fix can be implemented
• Deploy WAF rules to filter SQL injection attempts targeting the person parameter
• Review and enhance input validation for all user-supplied parameters in the application
• Audit database access logs for signs of prior exploitation

Patch Information

No official vendor patch has been announced at this time. Organizations using the Simple Pizza Ordering System should contact the vendor for update availability or consider implementing the code-level mitigations described below.

For additional vulnerability information and tracking, refer to VulDB Submission #597298.

Workarounds

• Implement prepared statements with parameterized queries for all database interactions involving user input
• Apply strict input validation to the person parameter, allowing only expected characters and formats
• Use a Web Application Firewall to filter malicious input patterns
• Run the database connection with minimal required privileges to limit the impact of successful exploitation
• Consider temporarily disabling the affected payment portal functionality until proper fixes are implemented

# Example: Apache mod_rewrite rule to block suspicious requests
# Add to .htaccess or Apache configuration
RewriteEngine On
RewriteCond %{QUERY_STRING} (union|select|insert|update|delete|drop|concat|char\(|0x) [NC]
RewriteRule ^paymentportal\.php$ - [F,L]