CVE-2025-14968: Simple Stock System SQL Injection Flaw

CVE-2025-14968 Overview

A SQL injection vulnerability has been discovered in code-projects Simple Stock System 1.0. This security flaw affects the /market/update.php file, where improper handling of the email parameter allows attackers to inject malicious SQL commands. The vulnerability can be exploited remotely without authentication, and proof-of-concept exploit code has been publicly disclosed, increasing the risk of active exploitation.

Critical Impact

Unauthenticated attackers can remotely exploit this SQL injection vulnerability to potentially access, modify, or delete database contents, compromising the confidentiality, integrity, and availability of the Simple Stock System application.

Affected Products

• Carmelo Simple Stock System 1.0
• /market/update.php endpoint

Discovery Timeline

• 2025-12-19 - CVE-2025-14968 published to NVD
• 2026-02-24 - Last updated in NVD database

Technical Details for CVE-2025-14968

Vulnerability Analysis

This vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), which encompasses injection flaws including SQL injection. The vulnerable endpoint /market/update.php fails to properly sanitize or validate the email parameter before incorporating it into SQL queries.

When user-supplied input is directly concatenated into database queries without proper escaping or parameterized statements, attackers can manipulate the query logic. This allows them to bypass authentication, extract sensitive data, modify database records, or potentially escalate privileges within the application.

The network-accessible nature of this vulnerability means any attacker with HTTP access to the application can attempt exploitation without requiring prior authentication or user interaction.

Root Cause

The root cause of this vulnerability is improper input validation and insufficient output encoding in the /market/update.php file. The application directly incorporates user-supplied data from the email parameter into SQL queries without implementing proper sanitization, prepared statements, or parameterized queries. This coding practice violates secure development principles and creates a direct path for SQL injection attacks.

Attack Vector

The attack is conducted remotely over the network by sending crafted HTTP requests to the /market/update.php endpoint. An attacker manipulates the email parameter to inject SQL syntax that alters the intended database query behavior.

The exploitation process typically involves:

1. Identifying the vulnerable email parameter in the /market/update.php endpoint
2. Crafting malicious SQL payloads to test for injection points
3. Extracting database schema information using UNION-based or error-based techniques
4. Retrieving sensitive data such as user credentials, stock information, or other business-critical data

Since the exploit has been publicly released, attackers can readily access proof-of-concept code to target vulnerable installations. For technical details on the exploit, refer to the GitHub CVE Issue Tracker and VulDB entry #337603.

Detection Methods for CVE-2025-14968

Indicators of Compromise

• Unusual SQL error messages in application logs or HTTP responses from /market/update.php
• HTTP requests containing SQL keywords (UNION, SELECT, INSERT, DELETE, OR 1=1) in the email parameter
• Unexpected database queries or data access patterns originating from the web application
• Signs of data exfiltration or unauthorized modifications to stock system records

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in request parameters
• Implement application-level logging to capture all requests to /market/update.php with parameter values
• Monitor database query logs for anomalous queries containing injection payloads
• Use intrusion detection systems (IDS) with signatures for common SQL injection attack patterns

Monitoring Recommendations

• Enable detailed logging on the Simple Stock System application server, particularly for the /market/ directory
• Configure alerting for multiple failed or malformed requests to the update.php endpoint
• Monitor database audit logs for unauthorized read or write operations
• Set up real-time monitoring for error responses that may indicate SQL injection attempts

How to Mitigate CVE-2025-14968

Immediate Actions Required

• Restrict network access to the Simple Stock System application to trusted IP addresses only
• Consider temporarily disabling the /market/update.php functionality until a patch is applied
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules
• Review application logs for signs of prior exploitation attempts

Patch Information

As of the last NVD update on 2026-02-24, no official vendor patch has been confirmed for this vulnerability. Organizations using Carmelo Simple Stock System 1.0 should monitor the Code Projects website for security updates and patch releases. Given the public availability of exploit code, implementing compensating controls is strongly recommended until an official fix is available.

Workarounds

• Implement input validation on the email parameter, allowing only valid email format characters
• Use prepared statements with parameterized queries in the PHP code handling /market/update.php
• Apply the principle of least privilege to the database user account used by the application
• Deploy network-level access controls to limit exposure of the vulnerable endpoint
• Consider implementing a reverse proxy with request filtering capabilities

# Example: Restrict access to update.php using Apache .htaccess
<Files "update.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    # Adjust IP range to match your trusted network
</Files>