CVE-2025-15409: Online Guitar Store SQLi Vulnerability

CVE-2025-15409 Overview

CVE-2025-15409 is a SQL Injection vulnerability affecting the code-projects Online Guitar Store version 1.0. The vulnerability exists in the /admin/Delete_product.php file, where the del_pro parameter is susceptible to SQL injection attacks due to improper input validation. An attacker can exploit this vulnerability remotely to manipulate database queries, potentially leading to unauthorized data access, modification, or deletion.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to bypass authentication, extract sensitive database information, modify or delete product data, and potentially compromise the entire web application.

Affected Products

• Anisha Online Guitar Store 1.0
• code-projects Online Guitar Store 1.0

Discovery Timeline

• 2026-01-01 - CVE-2025-15409 published to NVD
• 2026-01-06 - Last updated in NVD database

Technical Details for CVE-2025-15409

Vulnerability Analysis

This SQL Injection vulnerability (classified under CWE-89: SQL Injection and CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component) occurs in the administrative functionality responsible for deleting products. The del_pro parameter passed to /admin/Delete_product.php is directly incorporated into SQL queries without proper sanitization or parameterized query implementation.

The exploit has been publicly disclosed and may be utilized by attackers. The network-based attack vector means that any attacker with network access to the vulnerable application can attempt exploitation without requiring authentication or user interaction.

Root Cause

The root cause of this vulnerability is the failure to properly sanitize user-supplied input before including it in SQL queries. The del_pro parameter, intended to specify which product to delete, is concatenated directly into the SQL statement. This allows attackers to inject arbitrary SQL commands by crafting malicious input values that break out of the intended query structure.

The application lacks:

• Input validation and sanitization for the del_pro parameter
• Parameterized queries or prepared statements
• Proper escaping of special SQL characters

Attack Vector

The attack can be performed remotely over the network against the administrative interface. An attacker can manipulate the del_pro argument by injecting SQL syntax such as single quotes, UNION statements, or boolean-based payloads to extract data, bypass authentication, or perform other malicious database operations.

The vulnerability is exploitable by sending crafted HTTP requests to the /admin/Delete_product.php endpoint with a malicious del_pro parameter value. Common SQL injection techniques including UNION-based injection, error-based injection, and blind SQL injection may all be applicable depending on the application's error handling configuration.

For technical details on this vulnerability, refer to the GitHub Issue Discussion and the VulDB #339329 Advisory.

Detection Methods for CVE-2025-15409

Indicators of Compromise

• Unusual or malformed requests to /admin/Delete_product.php containing SQL syntax characters (single quotes, double dashes, UNION keywords)
• Database error messages in application logs indicating SQL syntax errors
• Unexpected database queries or access patterns in database audit logs
• Mass deletion or modification of product records without legitimate administrative action

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the del_pro parameter
• Monitor HTTP access logs for suspicious requests to /admin/Delete_product.php with encoded or malformed parameter values
• Enable database query logging and alert on queries containing injection signatures like ' OR 1=1, UNION SELECT, or comment sequences
• Deploy intrusion detection systems (IDS) with SQL injection detection signatures

Monitoring Recommendations

• Configure real-time alerting for any access to the vulnerable endpoint from external IP addresses
• Establish baseline database activity patterns and alert on deviations such as unusual SELECT queries or bulk data operations
• Review web server access logs regularly for patterns indicative of automated SQL injection scanning tools
• Monitor for data exfiltration indicators such as large response sizes from the vulnerable endpoint

How to Mitigate CVE-2025-15409

Immediate Actions Required

• Restrict access to the /admin/Delete_product.php endpoint through IP whitelisting or VPN requirements
• Implement input validation to allow only numeric values for the del_pro parameter
• Deploy a Web Application Firewall with SQL injection protection rules in blocking mode
• Consider temporarily disabling the product deletion functionality until a proper fix is implemented

Patch Information

No official vendor patch has been identified for this vulnerability. The application is a code-projects educational project, and users are advised to implement their own security controls or migrate to a more secure e-commerce platform.

For additional information, consult the VulDB #339329 Details and the Code Projects Resource page.

Workarounds

• Modify the /admin/Delete_product.php file to use parameterized queries or prepared statements instead of string concatenation
• Implement strict input validation to accept only integer values for the del_pro parameter using functions like intval() in PHP
• Add authentication and authorization checks to ensure only legitimate administrators can access the delete functionality
• Deploy network-level access controls to limit who can reach the administrative interface

# Example Apache configuration to restrict admin access
<Location /admin/>
    Order deny,allow
    Deny from all
    # Allow only from trusted IP ranges
    Allow from 10.0.0.0/8
    Allow from 192.168.1.0/24
</Location>