CVE-2025-4262: Online DJ Booking System SQLi Vulnerability

CVE-2025-4262 Overview

A SQL injection vulnerability has been identified in PHPGurukul Online DJ Booking Management System version 1.0. This vulnerability exists in the /admin/user-search.php file, where the searchdata parameter is improperly validated, allowing attackers to inject malicious SQL commands. The flaw enables remote attackers to manipulate database queries without authentication, potentially compromising the integrity, confidentiality, and availability of the underlying database.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive data, modify database records, or potentially gain unauthorized access to the application's backend systems. The exploit has been publicly disclosed, increasing the risk of active exploitation.

Affected Products

• PHPGurukul Online DJ Booking Management System 1.0
• Applications using the vulnerable /admin/user-search.php endpoint

Discovery Timeline

• 2025-05-05 - CVE-2025-4262 published to NVD
• 2025-05-07 - Last updated in NVD database

Technical Details for CVE-2025-4262

Vulnerability Analysis

This vulnerability is a classic SQL injection flaw (CWE-89) stemming from improper neutralization of special elements used in an SQL command. The vulnerable endpoint /admin/user-search.php accepts user-supplied input through the searchdata parameter and incorporates it directly into SQL queries without proper sanitization or parameterization.

The vulnerability is network-accessible, meaning attackers can exploit it remotely without requiring any prior authentication or user interaction. When exploited, the SQL injection can lead to unauthorized access to database contents, data manipulation, and potential system compromise.

Root Cause

The root cause of CVE-2025-4262 is the failure to implement proper input validation and parameterized queries in the user search functionality. The application directly concatenates user input from the searchdata parameter into SQL statements, allowing attackers to break out of the intended query structure and inject arbitrary SQL commands. This is a classic example of CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component) combined with CWE-89 (SQL Injection).

Attack Vector

The attack vector is network-based, targeting the administrative user search functionality. An attacker can craft malicious HTTP requests to /admin/user-search.php containing SQL injection payloads in the searchdata parameter. The attack requires no authentication and no user interaction, making it straightforward to exploit.

The vulnerability allows an attacker to manipulate the SQL query by injecting special characters and SQL syntax through the search parameter. By carefully crafting input containing SQL metacharacters like single quotes, UNION statements, or conditional expressions, an attacker can extract database information, bypass authentication mechanisms, or modify data. Technical details and proof-of-concept information are available in the GitHub CVE Issue Tracker.

Detection Methods for CVE-2025-4262

Indicators of Compromise

• Unusual or malformed requests to /admin/user-search.php containing SQL syntax such as single quotes, UNION SELECT statements, or comment sequences (--, /**/)
• Database error messages in application logs indicating syntax errors or unexpected query behavior
• Unexpected data exfiltration patterns or large response sizes from the user search endpoint
• Authentication bypass attempts or unauthorized administrative access

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the searchdata parameter
• Monitor application logs for SQL error messages or anomalous query patterns originating from the user search functionality
• Deploy intrusion detection systems (IDS) with signatures for common SQL injection attack patterns
• Perform regular security scanning of web applications to identify SQL injection vulnerabilities

Monitoring Recommendations

• Enable detailed logging for all requests to /admin/user-search.php and review for suspicious patterns
• Set up alerts for database errors or exceptions that may indicate exploitation attempts
• Monitor network traffic for unusual outbound data transfers that could indicate data exfiltration
• Implement rate limiting on the search endpoint to detect and mitigate automated exploitation attempts

How to Mitigate CVE-2025-4262

Immediate Actions Required

• Restrict access to /admin/user-search.php by implementing IP-based access controls or disabling the endpoint until a patch is applied
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules
• Review application logs for signs of prior exploitation attempts
• If possible, take the affected application offline until remediation is complete

Patch Information

At the time of publication, no official patch has been released by PHPGurukul for this vulnerability. Organizations using the Online DJ Booking Management System should monitor the PHP Gurukul website for security updates. Additional technical information is available through VulDB #307366.

Workarounds

• Implement input validation on the searchdata parameter to reject or sanitize SQL metacharacters before processing
• Modify the vulnerable code to use parameterized queries or prepared statements instead of string concatenation
• Restrict network access to the administrative interface using firewall rules or VPN requirements
• Consider replacing the vulnerable search functionality with a secure implementation that properly escapes user input

# Example: Restrict access to admin directory using .htaccess
# Add to /admin/.htaccess to limit access by IP
<Files "user-search.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Files>