CVE-2026-1533: Online Music Site 1.0 SQLi Vulnerability

CVE-2026-1533 Overview

A SQL injection vulnerability has been discovered in code-projects Online Music Site version 1.0. The vulnerability exists in the /Administrator/PHP/AdminAddCategory.php file, where improper input validation allows attackers to manipulate database queries. This flaw can be exploited remotely, potentially allowing unauthorized access to sensitive data, modification of database contents, or disruption of service availability.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to manipulate database queries, potentially leading to unauthorized data access, data modification, or system compromise. The exploit has been publicly released, increasing the risk of active exploitation.

Affected Products

• code-projects Online Music Site 1.0
• /Administrator/PHP/AdminAddCategory.php component

Discovery Timeline

• 2026-01-28 - CVE-2026-1533 published to NVD
• 2026-01-29 - Last updated in NVD database

Technical Details for CVE-2026-1533

Vulnerability Analysis

This vulnerability is classified as CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), specifically manifesting as SQL Injection. The affected component in the Online Music Site application fails to properly sanitize user-supplied input before incorporating it into SQL queries executed against the backend database.

The vulnerability resides in the AdminAddCategory.php file within the Administrator PHP directory. When an authenticated administrator interacts with the category management functionality, malicious input can be crafted to escape the intended SQL query context and inject arbitrary SQL commands. While the attack requires privileged access (administrator credentials), it can be performed remotely over the network with no user interaction required.

The exploitation of this vulnerability can result in confidentiality, integrity, and availability impacts. Attackers may be able to extract sensitive information from the database, modify existing records, or potentially disrupt database operations.

Root Cause

The root cause of this vulnerability is insufficient input validation and the lack of parameterized queries in the AdminAddCategory.php script. User-controlled input is directly concatenated into SQL statements without proper sanitization or the use of prepared statements, allowing attackers to inject malicious SQL code that alters the query's intended logic.

Attack Vector

The attack is network-based, meaning an attacker can exploit this vulnerability remotely without physical access to the target system. The attacker must have administrative privileges to access the vulnerable endpoint at /Administrator/PHP/AdminAddCategory.php. Once authenticated, the attacker can manipulate input parameters to inject SQL commands.

The exploit methodology involves crafting specially formatted input that breaks out of the expected SQL query structure. By injecting SQL metacharacters and additional query logic, an attacker can extract data from the database, bypass authentication controls, or execute administrative database operations.

Additional technical details and discussion can be found in the GitHub Issue Discussion and VulDB entry #343219.

Detection Methods for CVE-2026-1533

Indicators of Compromise

• Unusual SQL error messages in application logs related to the AdminAddCategory.php endpoint
• Unexpected database queries containing SQL injection patterns such as UNION SELECT, OR 1=1, or stacked queries
• Anomalous access patterns to the /Administrator/PHP/AdminAddCategory.php file
• Database audit logs showing unauthorized data access or modifications

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection attempts targeting the administrative PHP endpoints
• Monitor application logs for SQL syntax errors that may indicate attempted injection attacks
• Deploy database activity monitoring to identify suspicious query patterns or unauthorized data extraction
• Utilize intrusion detection systems (IDS) with signatures for common SQL injection payloads

Monitoring Recommendations

• Enable detailed logging for all administrative panel access and database queries
• Set up alerts for failed authentication attempts followed by suspicious requests to the admin panel
• Monitor network traffic for unusual patterns targeting the /Administrator/PHP/ directory
• Implement database query logging to capture and analyze all SQL statements executed by the application

How to Mitigate CVE-2026-1533

Immediate Actions Required

• Restrict access to the /Administrator/PHP/ directory using network-level controls or IP whitelisting
• Review and audit all administrator accounts to ensure only authorized personnel have access
• Implement Web Application Firewall rules to filter SQL injection attempts
• Consider temporarily disabling the affected AdminAddCategory.php functionality until a patch is applied

Patch Information

No official vendor patch has been identified for this vulnerability at the time of publication. Organizations using code-projects Online Music Site 1.0 should monitor the Code Projects website for security updates. In the absence of an official fix, implementing the workarounds and defensive measures described below is strongly recommended.

For additional vulnerability intelligence, refer to the VulDB CTI entry.

Workarounds

• Modify the AdminAddCategory.php code to use prepared statements with parameterized queries instead of direct string concatenation
• Implement strict input validation to whitelist acceptable characters and reject SQL metacharacters
• Apply the principle of least privilege to database accounts used by the application
• Deploy a Web Application Firewall configured with SQL injection detection rules
• Restrict administrative panel access to trusted IP addresses only

# Example: Restrict access to admin directory via .htaccess
# Add to /Administrator/.htaccess

<Directory "/Administrator/PHP/">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Directory>

# Alternative: Use iptables to restrict access to admin ports
# iptables -A INPUT -p tcp --dport 80 -s 192.168.1.0/24 -j ACCEPT
# iptables -A INPUT -p tcp --dport 80 -j DROP