CVE-2025-4264: PHPGurukul Ambulance Portal SQLi Flaw

CVE-2025-4264 Overview

A critical SQL injection vulnerability has been discovered in PHPGurukul Emergency Ambulance Hiring Portal version 1.0. The vulnerability exists in the /admin/edit-ambulance.php file, where improper handling of the dconnum parameter allows attackers to inject malicious SQL statements. This flaw enables remote attackers to manipulate database queries without authentication, potentially leading to unauthorized data access, modification, or deletion.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to compromise the database backend of the Emergency Ambulance Hiring Portal, potentially accessing sensitive patient data, ambulance records, and administrative credentials.

Affected Products

• PHPGurukul Emergency Ambulance Hiring Portal 1.0

Discovery Timeline

• 2025-05-05 - CVE-2025-4264 published to NVD
• 2025-05-07 - Last updated in NVD database

Technical Details for CVE-2025-4264

Vulnerability Analysis

This SQL injection vulnerability affects the administrative interface of the Emergency Ambulance Hiring Portal, specifically within the ambulance management functionality. The dconnum parameter in /admin/edit-ambulance.php is directly incorporated into database queries without proper sanitization or parameterization. This allows attackers to craft malicious input that escapes the intended query context and executes arbitrary SQL commands.

The vulnerability is classified under CWE-89 (SQL Injection) and CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). The exploit has been publicly disclosed, increasing the risk of active exploitation against unpatched systems.

Root Cause

The root cause of this vulnerability is the failure to implement proper input validation and parameterized queries when processing the dconnum argument in the edit ambulance functionality. The application directly concatenates user-supplied input into SQL statements, allowing special characters and SQL syntax to be interpreted as part of the query structure rather than as data values.

Attack Vector

The attack can be launched remotely over the network without requiring any user interaction or authentication. An attacker can send specially crafted HTTP requests to the vulnerable /admin/edit-ambulance.php endpoint with malicious SQL payloads in the dconnum parameter.

The exploitation technique involves injecting SQL metacharacters and commands through the dconnum parameter. Typical attack payloads might include UNION-based injections to extract data from other tables, time-based blind SQL injection to enumerate database contents, or stacked queries to modify or delete records. The attacker manipulates the parameter value to break out of the intended query and append additional SQL statements that are then executed by the database server.

Detection Methods for CVE-2025-4264

Indicators of Compromise

• Unusual HTTP requests to /admin/edit-ambulance.php containing SQL keywords such as UNION, SELECT, INSERT, UPDATE, DELETE, or DROP
• Web server logs showing requests with encoded special characters (%27, %22, %3B) in the dconnum parameter
• Database logs indicating failed or unusual queries originating from the web application
• Unexpected changes to ambulance records or administrative user accounts

Detection Strategies

• Implement web application firewall (WAF) rules to detect and block SQL injection patterns targeting the dconnum parameter
• Deploy intrusion detection/prevention systems (IDS/IPS) with signatures for common SQL injection attack patterns
• Enable detailed logging on the web server and database to capture suspicious query activity
• Use SentinelOne Singularity Platform to monitor for anomalous process behavior and command execution on web servers

Monitoring Recommendations

• Monitor HTTP access logs for repeated requests to /admin/edit-ambulance.php with unusual parameter values
• Set up alerts for database errors or exceptions that may indicate failed injection attempts
• Track changes to critical database tables containing user credentials and ambulance information
• Review authentication logs for unauthorized administrative access following potential exploitation

How to Mitigate CVE-2025-4264

Immediate Actions Required

• Restrict access to the administrative interface (/admin/) by IP address or VPN-only access
• Implement a web application firewall (WAF) with SQL injection protection rules
• Review and audit database access logs for signs of prior exploitation
• Consider taking the affected application offline until a patch is available or code remediation is completed

Patch Information

No official vendor patch has been released at the time of this writing. Organizations using PHPGurukul Emergency Ambulance Hiring Portal 1.0 should monitor the PHP Gurukul website for security updates. Additional vulnerability details are available through the VulDB entry #307368 and the GitHub issue tracker.

Workarounds

• Implement input validation by sanitizing the dconnum parameter to accept only expected numeric values
• Modify the vulnerable code to use prepared statements with parameterized queries instead of string concatenation
• Deploy a reverse proxy or WAF in front of the application to filter malicious requests
• Restrict database user privileges to limit the impact of successful SQL injection attacks

# Example: Apache .htaccess configuration to restrict admin access
<Directory "/var/www/html/admin">
    # Restrict admin access to specific IP addresses
    Require ip 192.168.1.0/24
    Require ip 10.0.0.0/8
    
    # Block requests containing common SQL injection patterns
    RewriteEngine On
    RewriteCond %{QUERY_STRING} (union|select|insert|update|delete|drop|truncate) [NC]
    RewriteRule .* - [F,L]
</Directory>