CVE-2025-5230: Nurse Hiring System SQL Injection Flaw

CVE-2025-5230 Overview

A critical SQL injection vulnerability has been discovered in PHPGurukul Online Nurse Hiring System version 1.0. The vulnerability exists in the /admin/bwdates-report-details.php file, where the fromdate and todate parameters are not properly sanitized before being used in SQL queries. This flaw allows remote attackers to inject malicious SQL commands, potentially leading to unauthorized data access, data manipulation, or complete database compromise.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive patient and nurse data, modify records, or potentially gain unauthorized administrative access to the healthcare management system.

Affected Products

• PHPGurukul Online Nurse Hiring System 1.0
• Applications using the vulnerable /admin/bwdates-report-details.php endpoint
• Healthcare management systems based on PHPGurukul Online Nurse Hiring System

Discovery Timeline

• 2025-05-27 - CVE-2025-5230 published to NVD
• 2025-06-10 - Last updated in NVD database

Technical Details for CVE-2025-5230

Vulnerability Analysis

This SQL injection vulnerability arises from improper input validation in the administrative reporting functionality of the Online Nurse Hiring System. The affected endpoint /admin/bwdates-report-details.php accepts user-supplied date parameters (fromdate and todate) that are directly incorporated into database queries without proper sanitization or parameterization.

The vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), which encompasses injection attacks where user input is not properly handled before being processed by an interpreter. The exploit has been publicly disclosed, increasing the risk of exploitation in the wild.

Root Cause

The root cause of this vulnerability is the lack of input validation and parameterized queries in the date-based report generation functionality. The application directly concatenates user-supplied date values into SQL statements, allowing attackers to break out of the intended query structure and inject arbitrary SQL commands. This is a common vulnerability pattern in PHP applications that fail to use prepared statements with bound parameters.

Attack Vector

The attack can be initiated remotely through the network without requiring any authentication or user interaction. An attacker can craft malicious HTTP requests to the /admin/bwdates-report-details.php endpoint, manipulating the fromdate or todate parameters with SQL injection payloads.

The vulnerability allows attackers to:

• Extract sensitive data from the database including user credentials, patient information, and nurse records
• Modify or delete database records
• Potentially escalate privileges by manipulating user roles
• Enumerate database structure and other tables

For technical details and proof-of-concept information, refer to the GitHub CVE Issue Discussion and VulDB CTI Report #310329.

Detection Methods for CVE-2025-5230

Indicators of Compromise

• Unusual SQL error messages in web server logs referencing /admin/bwdates-report-details.php
• HTTP requests containing SQL injection patterns in fromdate or todate parameters (e.g., single quotes, UNION statements, OR conditions)
• Unexpected database query patterns or slow query logs showing injection attempts
• Anomalous data extraction or unauthorized administrative actions

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect SQL injection patterns in date parameter fields
• Monitor HTTP access logs for requests to /admin/bwdates-report-details.php containing suspicious characters or SQL keywords
• Deploy database activity monitoring to detect unusual query patterns or data extraction attempts
• Configure intrusion detection systems to alert on SQL injection signature matches

Monitoring Recommendations

• Enable detailed logging for the administrative reporting module and review logs regularly for anomalies
• Set up alerts for multiple failed or malformed requests to the vulnerable endpoint
• Monitor database query logs for UNION-based or error-based SQL injection patterns
• Implement rate limiting on administrative endpoints to slow down automated exploitation attempts

How to Mitigate CVE-2025-5230

Immediate Actions Required

• Restrict access to the /admin/bwdates-report-details.php endpoint through IP whitelisting or additional authentication
• Implement input validation to ensure fromdate and todate parameters contain only valid date formats
• Deploy a Web Application Firewall with SQL injection detection rules as a temporary protective measure
• Review access logs to determine if the vulnerability has been exploited

Patch Information

At the time of this publication, no official patch has been released by PHPGurukul. Organizations should monitor the PHP Gurukul Security Resource for updates and security advisories. In the absence of an official patch, implementing the workarounds below is strongly recommended.

Additional technical information and community discussions can be found at VulDB Exploit #310329.

Workarounds

• Modify the vulnerable PHP file to use prepared statements with PDO or MySQLi instead of direct query concatenation
• Implement server-side input validation to strictly enforce date format patterns (YYYY-MM-DD) before processing
• Add a Web Application Firewall rule to block requests containing SQL injection patterns in date parameters
• Consider temporarily disabling the reporting functionality until a proper fix can be implemented

# Configuration example - Apache mod_rewrite to restrict access
# Add to .htaccess in the admin directory
<Files "bwdates-report-details.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    # Replace with your trusted IP range
</Files>