CVE-2026-14653: SQL Injection in Shopping Cart Men's Product Delete Endpoint

Executive Summary

CVE-2026-14653 is a high-severity SQL injection vulnerability discovered in SourceCodester Simple and Nice Shopping Cart Script 1.0. The vulnerable endpoint is /admin/mensproductdeletequery.php, where the user_id parameter is not sanitized before being used in a database query.

CVSS Score: 7.3 (High)

Public exploit code is available. This vulnerability can be exploited remotely without authentication (depending on whether the admin panel itself requires login), making it a high-priority finding for any deployment of this software.

Technical Details

Vulnerability Type

SQL Injection (CWE-89) — a classic unsanitized parameter concatenation vulnerability in a product deletion workflow. The user_id parameter sent to the delete query endpoint is not validated or parameterized.

Attack Vector

Affected Endpoint

GET/POST /admin/mensproductdeletequery.php
Parameter: user_id

The application passes user_id directly into a DELETE or SELECT SQL query without escaping, allowing an attacker to inject arbitrary SQL clauses.

Example Payload

/admin/mensproductdeletequery.php?user_id=1 OR 1=1--
/admin/mensproductdeletequery.php?user_id=1 UNION SELECT username,password,3,4 FROM admin--

Impact

Exploitation of this vulnerability could allow an attacker to:

• Exfiltrate all database records including product inventory, customer data, and admin credentials
• Delete arbitrary records across tables by manipulating the injected WHERE clause
• Enumerate database structure (table names, column names) via UNION-based or error-based injection
• Potentially achieve Remote Code Execution via INTO OUTFILE if the MySQL user has FILE privilege

The product deletion context is particularly dangerous because a destructive payload (DROP TABLE, mass DELETE) could result in full data loss.

Affected Versions

Remediation

No vendor patch is available. Apply the following mitigations immediately:

1. Restrict admin panel access to trusted IP addresses at the web server or firewall level
2. Use prepared statements for all database queries:

// Vulnerable
$query = "DELETE FROM mens_products WHERE user_id=" . $_GET['user_id'];
 
// Secure replacement
$stmt = $pdo->prepare("DELETE FROM mens_products WHERE user_id = ?");
$stmt->execute([intval($_GET['user_id'])]);

3. Validate and cast the user_id parameter — it should always be an integer:

$user_id = filter_input(INPUT_GET, 'user_id', FILTER_VALIDATE_INT);
if ($user_id === false || $user_id === null) {
    http_response_code(400);
    exit('Invalid input');
}

4. Deploy a WAF with SQL injection detection profiles
5. Restrict database user privileges — the web application DB user should not have DROP, FILE, or GRANT privileges

Detection

Monitor web logs for injection patterns targeting this endpoint:

/admin/mensproductdeletequery.php?user_id=
Patterns: UNION, SELECT, DROP, OR 1, --, #, 0x

References

• NVD Entry — CVE-2026-14653
• OWASP SQL Injection Prevention Cheat Sheet
• CWE-89: SQL Injection