CVE-2025-4308: Art Gallery Management System SQLi Flaw

CVE-2025-4308 Overview

A critical SQL Injection vulnerability has been identified in PHPGurukul Art Gallery Management System version 1.1. The vulnerability exists in the /admin/add-art-type.php file, where the arttype parameter fails to properly sanitize user-supplied input before incorporating it into SQL queries. This allows remote attackers to inject malicious SQL commands, potentially leading to unauthorized data access, data modification, or complete database compromise.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive data, modify database records, or potentially gain administrative access to the Art Gallery Management System without authentication.

Affected Products

• PHPGurukul Art Gallery Management System 1.1
• Art Gallery Management System admin panel (/admin/add-art-type.php)

Discovery Timeline

• 2025-05-06 - CVE-2025-4308 published to NVD
• 2025-05-13 - Last updated in NVD database

Technical Details for CVE-2025-4308

Vulnerability Analysis

This SQL injection vulnerability stems from improper input validation in the Art Gallery Management System's admin interface. The vulnerable endpoint /admin/add-art-type.php accepts user input through the arttype parameter and directly concatenates it into SQL queries without adequate sanitization or parameterization. This classic injection vulnerability allows attackers to manipulate the SQL query structure, enabling unauthorized database operations.

The vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command) and CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). These classifications indicate that the application fails to properly neutralize special characters that could modify the intended SQL command structure.

Root Cause

The root cause of this vulnerability is the direct use of unsanitized user input in SQL query construction. The arttype parameter value is incorporated into database queries without proper escaping, prepared statements, or parameterized queries. This allows specially crafted input containing SQL metacharacters to alter the query's logic and execute arbitrary SQL commands.

Attack Vector

The attack vector is network-based, meaning attackers can exploit this vulnerability remotely without requiring prior authentication. By crafting malicious HTTP requests to the /admin/add-art-type.php endpoint with SQL injection payloads in the arttype parameter, attackers can:

1. Extract sensitive information from the database including user credentials, artwork data, and system configuration
2. Modify or delete existing database records
3. Potentially escalate privileges if the database user has elevated permissions
4. In some configurations, execute operating system commands through database-specific functions

The exploitation technique involves injecting SQL syntax through the arttype parameter. Attackers typically test for injection by submitting single quotes or boolean-based payloads to observe application behavior changes. Once confirmed, UNION-based or error-based injection techniques can be employed to extract data from the database. Technical details and proof-of-concept information have been documented in the GitHub Issue on myCVE and VulDB #307411.

Detection Methods for CVE-2025-4308

Indicators of Compromise

• Unusual HTTP POST requests to /admin/add-art-type.php containing SQL metacharacters (single quotes, double dashes, UNION, SELECT keywords)
• Database error messages in application logs indicating malformed SQL queries
• Unexpected database queries or operations logged by database auditing tools
• Access to /admin/add-art-type.php from unusual IP addresses or geographic locations

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the arttype parameter
• Configure IDS/IPS signatures to alert on SQL injection attempts targeting Art Gallery Management System endpoints
• Enable detailed logging for the /admin/ directory and monitor for suspicious parameter values
• Deploy database activity monitoring to detect anomalous query patterns

Monitoring Recommendations

• Monitor web server access logs for requests to /admin/add-art-type.php with encoded or suspicious parameter values
• Set up alerts for database errors that may indicate SQL injection attempts
• Review authentication logs for any unauthorized access following potential exploitation
• Implement real-time monitoring of database queries for SQL injection signatures

How to Mitigate CVE-2025-4308

Immediate Actions Required

• Restrict access to the /admin/ directory using IP whitelisting or VPN requirements
• Implement a Web Application Firewall (WAF) with SQL injection protection enabled
• Consider taking the Art Gallery Management System offline until patches are applied or workarounds implemented
• Audit database access logs to determine if exploitation has already occurred

Patch Information

At the time of publication, no official vendor patch has been released for this vulnerability. System administrators should monitor the PHP Gurukul website for security updates. In the interim, implement the recommended workarounds and consider deploying compensating controls such as WAF rules and input validation at the application layer.

Workarounds

• Implement server-side input validation to reject SQL metacharacters in the arttype parameter
• Deploy a reverse proxy or WAF with SQL injection filtering capabilities
• Modify the source code to use prepared statements with parameterized queries for all database operations
• Restrict database user privileges to minimum required permissions to limit exploitation impact

# Apache .htaccess configuration to restrict admin access
<Directory "/var/www/html/admin">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    # Replace with your trusted IP range
</Directory>