CVE-2026-2211: Online Music Site SQL Injection Flaw

CVE-2026-2211 Overview

A SQL Injection vulnerability has been identified in code-projects Online Music Site version 1.0. The vulnerability exists in the /Administrator/PHP/AdminDeleteCategory.php file, where the ID parameter is susceptible to SQL injection attacks due to improper input sanitization. This flaw allows remote attackers to manipulate SQL queries and potentially access, modify, or delete database contents without proper authorization.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive data, modify database records, or potentially gain unauthorized access to the underlying system through database manipulation techniques.

Affected Products

• Fabian Online Music Site 1.0
• code-projects Online Music Site 1.0

Discovery Timeline

• 2026-02-09 - CVE-2026-2211 published to NVD
• 2026-02-10 - Last updated in NVD database

Technical Details for CVE-2026-2211

Vulnerability Analysis

This vulnerability is a classic SQL Injection flaw (CWE-89) resulting from improper neutralization of special elements used in SQL commands. The affected component, AdminDeleteCategory.php, processes user-supplied input through the ID parameter without adequate sanitization or parameterized queries. When an attacker supplies malicious input containing SQL syntax, the application directly incorporates this input into database queries, allowing arbitrary SQL command execution.

The vulnerability also falls under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), as the unsanitized input is passed directly to the database engine. The exploit has been publicly disclosed, increasing the risk of widespread exploitation against unpatched installations.

Root Cause

The root cause of this vulnerability stems from a failure to implement proper input validation and parameterized queries in the AdminDeleteCategory.php file. The application directly concatenates user-supplied input from the ID parameter into SQL statements without sanitization, escaping, or the use of prepared statements. This allows attackers to inject arbitrary SQL syntax that the database interprets and executes as legitimate commands.

Attack Vector

The attack can be executed remotely over the network without requiring authentication. An attacker can craft malicious HTTP requests targeting the /Administrator/PHP/AdminDeleteCategory.php endpoint with specially crafted values in the ID parameter. By injecting SQL metacharacters and commands, the attacker can manipulate the query logic to extract database contents, bypass authentication mechanisms, modify data, or potentially execute administrative database operations.

The vulnerability is exploited by sending a request with a manipulated ID parameter containing SQL injection payloads. For example, an attacker might append UNION-based queries to extract data from other tables, or use boolean-based blind injection techniques to enumerate database contents character by character. Technical details and proof-of-concept information can be found in the GitHub Issue Discussion and VulDB #344927.

Detection Methods for CVE-2026-2211

Indicators of Compromise

• Unusual or malformed HTTP requests to /Administrator/PHP/AdminDeleteCategory.php containing SQL syntax characters such as single quotes, semicolons, or UNION keywords in the ID parameter
• Database error messages in application logs indicating SQL syntax errors or unexpected query results
• Anomalous database query patterns showing data extraction attempts or unauthorized SELECT statements
• Evidence of database enumeration activities in web server access logs

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in request parameters
• Implement database activity monitoring to identify suspicious query patterns, especially those involving system tables or bulk data extraction
• Configure intrusion detection systems (IDS) to alert on requests containing SQL injection signatures targeting the affected endpoint
• Enable detailed logging for the AdminDeleteCategory.php script and monitor for abnormal request patterns

Monitoring Recommendations

• Monitor web server access logs for requests to /Administrator/PHP/AdminDeleteCategory.php with unusual ID parameter values
• Set up alerts for database errors that indicate injection attempts, such as syntax errors or constraint violations
• Track failed and successful authentication attempts in the administrator interface for signs of compromise
• Review database audit logs for unexpected query patterns or data access anomalies

How to Mitigate CVE-2026-2211

Immediate Actions Required

• If possible, restrict access to the /Administrator/PHP/AdminDeleteCategory.php endpoint to trusted IP addresses only
• Implement input validation on the ID parameter to accept only numeric values
• Deploy a Web Application Firewall with SQL injection protection rules as a temporary mitigation
• Consider taking the affected application offline until proper fixes can be implemented

Patch Information

No official vendor patch has been released at this time. The application is maintained as a code-projects resource. Organizations using this software should implement the workarounds listed below and monitor for updates from the Code Projects Resource Hub. For additional technical context and vulnerability tracking, refer to VulDB #344927 CTI.

Workarounds

• Modify the AdminDeleteCategory.php file to use prepared statements with parameterized queries instead of direct string concatenation
• Implement strict input validation to ensure the ID parameter only accepts integer values using functions like intval() or filter_var() with FILTER_VALIDATE_INT
• Apply the principle of least privilege to the database user account used by the application, restricting it from accessing sensitive tables or executing administrative commands
• Enable web application firewall rules specifically targeting SQL injection patterns in the affected endpoint

# Configuration example - Apache .htaccess to restrict access to admin PHP files
<Files "AdminDeleteCategory.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Files>