CVE-2025-4703: Vehicle Parking Management System SQLi

CVE-2025-4703 Overview

A SQL injection vulnerability has been identified in PHPGurukul Vehicle Parking Management System version 1.13. This vulnerability exists in the admin profile functionality, specifically within the /admin/admin-profile.php file where the contactnumber parameter is improperly handled. Remote attackers can exploit this flaw to inject malicious SQL statements, potentially compromising the confidentiality, integrity, and availability of the underlying database.

Critical Impact

This SQL injection vulnerability allows unauthenticated remote attackers to manipulate database queries through the contactnumber parameter, potentially leading to unauthorized data access, data modification, or complete database compromise.

Affected Products

• PHPGurukul Vehicle Parking Management System version 1.13
• Installations running the vulnerable /admin/admin-profile.php endpoint

Discovery Timeline

• 2025-05-15 - CVE-2025-4703 published to NVD
• 2025-05-28 - Last updated in NVD database

Technical Details for CVE-2025-4703

Vulnerability Analysis

This vulnerability represents a classic SQL injection flaw (CWE-89) stemming from improper neutralization of special elements used in SQL commands. The affected component is the admin profile management page located at /admin/admin-profile.php. When processing user-supplied input through the contactnumber parameter, the application fails to properly sanitize or parameterize the data before incorporating it into SQL queries.

The vulnerability also maps to CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), indicating that the injection flaw could potentially be leveraged for broader injection attacks beyond standard SQL injection.

Root Cause

The root cause of this vulnerability is the direct inclusion of user-controlled input into SQL queries without proper sanitization, escaping, or the use of prepared statements with parameterized queries. The contactnumber field in the admin profile functionality accepts user input that is directly concatenated into database queries, allowing attackers to break out of the intended query context and inject arbitrary SQL commands.

This represents a fundamental secure coding failure where input validation and output encoding are not properly implemented in the PHP application layer.

Attack Vector

The attack can be launched remotely over the network without requiring any authentication or user interaction. An attacker can craft malicious HTTP requests to the /admin/admin-profile.php endpoint, injecting SQL payloads through the contactnumber parameter.

Exploitation typically involves sending specially crafted values in the contactnumber field that include SQL syntax designed to:

• Extract sensitive data from the database using UNION-based or error-based injection techniques
• Bypass authentication mechanisms
• Modify or delete database records
• Potentially execute system commands if database permissions allow (via SQL features like xp_cmdshell or INTO OUTFILE)

The vulnerability has been publicly disclosed, and technical details are available in the GitHub Issue Discussion. Additional tracking information can be found at VulDB #309001.

Detection Methods for CVE-2025-4703

Indicators of Compromise

• Unusual or malformed values in web server logs for requests to /admin/admin-profile.php
• SQL error messages appearing in application logs or HTTP responses
• Database query logs showing unexpected SQL syntax or UNION SELECT statements
• Anomalous database read patterns or unauthorized data exports

Detection Strategies

• Deploy web application firewall (WAF) rules to detect SQL injection patterns in the contactnumber parameter
• Monitor application and database logs for SQL syntax errors or injection attempt signatures
• Implement intrusion detection system (IDS) rules targeting common SQL injection payloads
• Enable database query logging and alert on queries containing suspicious keywords like UNION, SELECT, DROP, or comment sequences

Monitoring Recommendations

• Enable verbose logging on the web server for all requests to admin-prefixed endpoints
• Configure database audit logging to capture all queries executed against sensitive tables
• Set up real-time alerting for any HTTP 500 errors or SQL-related exceptions from the application
• Monitor for unusual patterns in database query execution times that may indicate time-based blind SQL injection attempts

How to Mitigate CVE-2025-4703

Immediate Actions Required

• Restrict network access to the /admin/admin-profile.php endpoint using firewall rules or .htaccess configurations
• Implement a web application firewall (WAF) with SQL injection detection rules as an interim protective measure
• Review and audit all admin accounts for signs of unauthorized access or modification
• Consider temporarily disabling the admin profile update functionality until a patch is applied

Patch Information

As of the last modification date of 2025-05-28, no official vendor patch has been documented in the available CVE data. Organizations should monitor the PHPGurukul website for security updates and upgrade announcements for the Vehicle Parking Management System.

In the absence of an official patch, organizations should implement code-level fixes by modifying the vulnerable /admin/admin-profile.php file to use prepared statements with parameterized queries for all database operations involving user input.

Workarounds

• Deploy input validation on the contactnumber parameter to accept only numeric characters and limit length
• Implement prepared statements with parameterized queries in the application code as a code-level fix
• Use a reverse proxy or WAF to filter and block SQL injection patterns before they reach the application
• Apply the principle of least privilege to the database user account used by the application, limiting permissions to only what is necessary

# Example .htaccess restriction for admin directory
<Files "admin-profile.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
</Files>