CVE-2025-4812: PHPGurukul Human Metapneumovirus SQLi Flaw

CVE-2025-4812 Overview

A critical SQL injection vulnerability has been discovered in PHPGurukul Human Metapneumovirus Testing Management System version 1.0. This vulnerability exists in the /profile.php file where improper sanitization of the mobilenumber parameter allows attackers to inject malicious SQL queries. The vulnerability can be exploited remotely without authentication, potentially enabling unauthorized access to sensitive patient testing data and system compromise.

Critical Impact

Remote attackers can execute arbitrary SQL commands through the mobilenumber parameter, potentially leading to unauthorized data access, data modification, or complete database compromise in healthcare testing management systems.

Affected Products

• PHPGurukul Human Metapneumovirus Testing Management System 1.0

Discovery Timeline

• 2025-05-16 - CVE-2025-4812 published to NVD
• 2025-06-04 - Last updated in NVD database

Technical Details for CVE-2025-4812

Vulnerability Analysis

This vulnerability stems from insufficient input validation in the profile management functionality of the Human Metapneumovirus Testing Management System. The application fails to properly sanitize user-supplied input in the mobilenumber parameter before incorporating it into SQL queries. This classic SQL injection flaw allows attackers to manipulate database queries by injecting malicious SQL syntax through the affected parameter.

The vulnerability is classified under CWE-89 (SQL Injection) and CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). Healthcare management systems like this one typically store sensitive patient information, test results, and administrative credentials, making this vulnerability particularly concerning from a data privacy perspective.

Root Cause

The root cause of this vulnerability is the direct concatenation of user input into SQL queries without proper parameterization or input sanitization. The mobilenumber parameter in /profile.php accepts user input that is passed directly to database queries, allowing attackers to break out of the intended query structure and inject arbitrary SQL commands.

Attack Vector

The attack can be initiated remotely over the network. An attacker can craft malicious HTTP requests to the /profile.php endpoint with specially crafted SQL payloads in the mobilenumber parameter. This allows the attacker to extract sensitive data from the database, modify or delete records, or potentially escalate privileges within the application.

The vulnerability has been publicly disclosed, and technical details are available through external references including the GitHub Issue Discussion and VulDB entry #309269. The attack requires no authentication and no user interaction, making it highly exploitable from a remote network position.

Detection Methods for CVE-2025-4812

Indicators of Compromise

• Unusual SQL error messages in application logs related to /profile.php
• HTTP requests to /profile.php containing SQL syntax characters such as single quotes, double dashes, or UNION statements in the mobilenumber parameter
• Database query logs showing unexpected queries or data extraction attempts
• Anomalous database access patterns or bulk data retrieval operations

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect SQL injection patterns in HTTP parameters
• Monitor application and database logs for SQL syntax errors and injection attempts targeting the mobilenumber field
• Deploy intrusion detection systems (IDS) with signatures for common SQL injection payloads
• Enable database audit logging to track unusual query patterns or unauthorized data access

Monitoring Recommendations

• Enable detailed logging on the /profile.php endpoint to capture all parameter values
• Configure database monitoring to alert on suspicious query patterns including UNION-based or time-based injection attempts
• Implement real-time alerting for multiple failed requests containing SQL syntax characters

How to Mitigate CVE-2025-4812

Immediate Actions Required

• Remove or restrict access to the PHPGurukul Human Metapneumovirus Testing Management System from public-facing networks
• Implement input validation on the mobilenumber parameter to allow only numeric characters
• Deploy a Web Application Firewall with SQL injection protection rules in front of the application
• Review database access logs for signs of prior exploitation

Patch Information

As of the last update on 2025-06-04, no official vendor patch has been released for this vulnerability. Organizations using this software should contact the vendor through the PHP Gurukul website for remediation guidance. Until a patch is available, implementing the workarounds below is strongly recommended.

Workarounds

• Restrict network access to the application by implementing IP allowlisting or VPN requirements
• Modify the /profile.php code to use parameterized queries or prepared statements for the mobilenumber parameter
• Implement server-side input validation to reject non-numeric input in the mobile number field
• Consider temporarily disabling the profile functionality if it is not business-critical

# Example: Apache mod_security rule to block SQL injection attempts
SecRule ARGS:mobilenumber "@detectSQLi" "id:1001,phase:2,deny,status:403,msg:'SQL Injection Attempt Blocked'"