CVE-2025-4553: Apartment Visitors Management SQLI Flaw

CVE-2025-4553 Overview

A critical SQL injection vulnerability has been identified in PHPGurukul Apartment Visitors Management System version 1.0. The vulnerability exists in the administrative reporting functionality, specifically within the /admin/bwdates-reports-details.php file. Attackers can exploit improper input validation of the fromdate and todate parameters to execute arbitrary SQL commands against the backend database.

Critical Impact

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

Affected Products

• PHPGurukul Apartment Visitors Management System 1.0

Discovery Timeline

• 2025-05-12 - CVE-2025-4553 published to NVD
• 2025-05-16 - Last updated in NVD database

Technical Details for CVE-2025-4553

Vulnerability Analysis

This SQL injection vulnerability (CWE-89) stems from inadequate input sanitization in the date-based reporting module of the Apartment Visitors Management System. The administrative interface exposes a reporting functionality through bwdates-reports-details.php that accepts date range parameters without proper validation or parameterization.

The application directly incorporates user-supplied values from the fromdate and todate parameters into SQL queries without sanitization, escaping, or the use of prepared statements. This allows attackers to inject malicious SQL syntax that modifies the intended query logic.

Root Cause

The root cause is improper neutralization of special elements used in SQL commands (CWE-89) combined with general injection vulnerabilities (CWE-74). The PHP application fails to implement parameterized queries or input validation mechanisms for the date parameters, allowing SQL metacharacters to be interpreted as part of the query structure rather than literal data values.

Attack Vector

The vulnerability is exploitable remotely over the network without requiring authentication. An attacker can craft malicious HTTP requests to the /admin/bwdates-reports-details.php endpoint, injecting SQL payloads through the fromdate or todate GET/POST parameters.

The attack leverages the network-accessible administrative interface. Successful exploitation could allow attackers to extract sensitive visitor data, modify records, escalate privileges within the application, or potentially achieve command execution on the underlying server depending on database configuration and privileges.

Technical details and proof-of-concept information have been disclosed publicly. Refer to the GitHub Issue Discussion for additional technical analysis.

Detection Methods for CVE-2025-4553

Indicators of Compromise

• Unusual or malformed values in web server logs for requests to /admin/bwdates-reports-details.php containing SQL keywords (SELECT, UNION, DROP, etc.)
• Database error messages in application logs indicating syntax errors from injection attempts
• Unexpected database queries or access patterns originating from the web application user context
• Evidence of data exfiltration or unauthorized database modifications in audit logs

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in the fromdate and todate parameters
• Implement application-layer logging to capture all requests to administrative endpoints, particularly those involving date parameters
• Configure database audit logging to detect anomalous query patterns or unauthorized data access attempts
• Use intrusion detection systems (IDS) with signatures for SQL injection attack patterns

Monitoring Recommendations

• Monitor HTTP request logs for the /admin/bwdates-reports-details.php endpoint with particular attention to parameter manipulation
• Set up alerts for database errors that indicate SQL syntax violations or injection attempts
• Track failed and successful authentication attempts to the administrative interface
• Monitor for unusual outbound data transfers that could indicate data exfiltration following successful exploitation

How to Mitigate CVE-2025-4553

Immediate Actions Required

• Restrict access to the /admin/ directory to trusted IP addresses only using web server configuration
• Implement Web Application Firewall (WAF) rules to block SQL injection patterns in request parameters
• Consider taking the affected reporting functionality offline until a patch is available
• Review database permissions to ensure the web application user has minimal required privileges
• Enable database audit logging to detect any exploitation attempts

Patch Information

No official vendor patch has been confirmed at this time. Organizations using PHPGurukul Apartment Visitors Management System should monitor the PHP Gurukul Resource website for security updates. Additional vulnerability details are available at VulDB #308300.

Workarounds

• Implement input validation at the application level by modifying the vulnerable PHP file to use prepared statements with parameterized queries
• Deploy a reverse proxy or WAF to filter malicious input before it reaches the application
• Restrict network access to the administrative interface using firewall rules, limiting connections to trusted management networks
• Apply the principle of least privilege to the database user account used by the application, removing unnecessary permissions like DROP or ALTER

# Example Apache configuration to restrict admin access by IP
<Directory "/var/www/html/admin">
    Require ip 192.168.1.0/24
    Require ip 10.0.0.0/8
</Directory>