CVE-2026-37338: SQL Injection in SourceCodester Simple Music Cloud

CVE-2026-37338: SQL Injection in Simple Music Cloud Community System

A critical SQL injection vulnerability identified as CVE-2026-37338 has been disclosed in SourceCodester Simple Music Cloud Community System v1.0, a PHP-based web application for hosting and sharing music content. The flaw exists in the user profile view endpoint and allows unauthenticated remote attackers to inject arbitrary SQL commands into the backend database.

The vulnerability carries a CVSS v3.1 score of 9.4 (Critical) and is classified under CWE-89 — Improper Neutralization of Special Elements used in SQL Commands.

Vulnerability Overview

Technical Details

Affected Component

The vulnerability resides in the user profile view page at /music/view_user.php. A user identifier parameter passed to this endpoint is concatenated directly into a SQL query without sanitization, prepared statements, or parameterized input handling.

Exploitation Mechanism

An attacker can send a crafted HTTP request to the vulnerable endpoint with SQL payloads embedded in the user ID parameter:

GET /music/view_user.php?id=1' UNION SELECT NULL,username,password,NULL FROM users-- HTTP/1.1
Host: target.example.com

Successful exploitation enables:

• User credential extraction — dumping usernames and hashed passwords from the application database
• Full database enumeration — reading all tables, schemas, and data across the database instance
• Music library data access — reading private playlists, uploads, and user-generated content
• Account takeover — cracking or replaying harvested credentials to take over user accounts
• Second-order injection — inserting payloads that trigger SQL injection elsewhere in the application

Attack Severity Rationale

The CVSS 9.4 rating reflects the combination of:

• Network-accessible attack vector — no physical or local access required
• No authentication prerequisite — the vulnerable endpoint is publicly accessible
• High confidentiality impact — full database read access
• High integrity impact — potential for data manipulation
• High availability impact — possibility of DROP TABLE or database destruction

Attack Flow

1. Attacker enumerates publicly accessible SourceCodester music application

2. Attacker sends crafted request to /music/view_user.php with SQL payload in id parameter

3. Unsanitized input is interpolated directly into the SQL query string

4. Database returns query results containing user records, credentials, and application data

5. Attacker extracts password hashes and cracks or replays them for account takeover

6. With admin credentials, attacker gains full control of the music platform

Broader Impact: Community Platform Data

Music community platforms built on SourceCodester typically store:

• User account credentials — usernames, email addresses, and password hashes
• Music uploads and metadata — track titles, artist names, and file storage paths
• User-generated content — playlists, comments, ratings, and social interactions
• Payment or subscription data — if the platform includes premium features

For self-hosted deployments — common with SourceCodester applications used in academic or small business contexts — exploitation can result in a full data breach with no detection capabilities in place.

Remediation

No official patch has been released by SourceCodester. Until one is available:

Immediate Steps

1. Remove public access to the vulnerable endpoint if possible
2. Require authentication before allowing access to /music/view_user.php
3. Apply a WAF rule blocking SQL metacharacters (', --, UNION, SELECT) in the id parameter

Code-Level Fix

Replace direct string interpolation with prepared statements:

// Vulnerable pattern
$query = "SELECT * FROM users WHERE id = '" . $_GET['id'] . "'";
$result = mysqli_query($conn, $query);
 
// Secure pattern
$stmt = $conn->prepare("SELECT * FROM users WHERE id = ?");
$stmt->bind_param("i", $_GET['id']);
$stmt->execute();
$result = $stmt->get_result();

Detection

Review web server logs for injection attempts against the view_user endpoint:

grep "view_user.php" /var/log/apache2/access.log | grep -iE "union|select|'|--|0x"

Impact Assessment

Key Takeaways

1. CVE-2026-37338 is a CVSS 9.4 Critical SQL injection in SourceCodester Simple Music Cloud Community System 1.0, affecting /music/view_user.php
2. The flaw requires no authentication and is exploitable remotely via a simple GET request
3. No official patch exists — operators should restrict access or apply parameterized queries immediately
4. SourceCodester applications frequently contain systemic SQL injection issues across multiple endpoints — audit the full codebase if deploying any SourceCodester product
5. The public NVD disclosure lowers the exploitation barrier significantly for opportunistic attackers

Sources

• CVE-2026-37338 — NIST NVD

Related Reading

• CVE-2026-37345: SQL Injection in Vehicle Parking Management System
• CVE-2026-37347: SQL Injection in Payroll Management System
• CVE-2026-3740: SQL Injection in University Management System