CVE-2025-6339: Hospital Management System SQL Injection

CVE-2025-6339 Overview

CVE-2025-6339 is a SQL Injection vulnerability discovered in the Ponaravindb Hospital Management System version 1.0. The vulnerability exists in the /func3.php file where the username1 parameter is improperly handled, allowing attackers to inject malicious SQL queries. This flaw enables remote attackers to potentially access, modify, or delete sensitive data stored in the application's database without requiring any authentication or user interaction.

Critical Impact

This SQL injection vulnerability in healthcare software could expose sensitive patient data, medical records, and administrative credentials to unauthorized access. Healthcare organizations running this software face significant compliance and data breach risks.

Affected Products

• Ponaravindb Hospital Management System version 1.0

Discovery Timeline

• 2025-06-20 - CVE-2025-6339 published to NVD
• 2025-10-31 - Last updated in NVD database

Technical Details for CVE-2025-6339

Vulnerability Analysis

This SQL injection vulnerability occurs in the /func3.php file of the Hospital Management System when processing the username1 parameter. The application fails to properly sanitize or parameterize user-supplied input before incorporating it into SQL queries. This allows an attacker to manipulate the query structure by injecting SQL syntax through the vulnerable parameter.

The vulnerability is network-accessible, requiring no authentication or privileges to exploit. This makes it particularly dangerous as any remote attacker can target exposed instances of the Hospital Management System. The potential impact includes unauthorized access to patient records, modification of medical data, and possible extraction of database credentials.

Root Cause

The root cause of this vulnerability is improper input validation (CWE-89: SQL Injection, CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component). The application directly concatenates user-controlled input from the username1 parameter into SQL queries without implementing prepared statements, parameterized queries, or adequate input sanitization. This classic injection flaw allows attackers to break out of the intended query structure and execute arbitrary SQL commands.

Attack Vector

The attack can be launched remotely over the network by sending specially crafted HTTP requests to the /func3.php endpoint. An attacker would manipulate the username1 parameter to include SQL metacharacters and malicious query fragments. For example, injecting single quotes followed by SQL commands could allow the attacker to bypass authentication, extract database contents through UNION-based or blind SQL injection techniques, or perform destructive operations depending on the database user's privileges.

The exploit has been publicly disclosed, increasing the risk of exploitation in the wild. Technical details are available through the GitHub CVE PoC Document and additional vulnerability information is tracked at VulDB #313334.

Detection Methods for CVE-2025-6339

Indicators of Compromise

• Unusual database queries containing SQL syntax in web server access logs for /func3.php
• Multiple requests to /func3.php with suspicious characters (single quotes, semicolons, UNION keywords) in the username1 parameter
• Unexpected database errors or application crashes following requests to the vulnerable endpoint
• Evidence of data exfiltration or unauthorized database access in database audit logs

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in requests to /func3.php
• Implement application-level logging to capture and alert on malformed or suspicious input in the username1 parameter
• Configure database activity monitoring to detect unusual query patterns or unauthorized data access
• Use intrusion detection systems (IDS) with signatures for common SQL injection attack patterns

Monitoring Recommendations

• Enable detailed access logging for all requests to the Hospital Management System web application
• Monitor database query logs for anomalous SQL statements, particularly those with UNION, SELECT, or comment syntax
• Set up alerts for failed authentication attempts or database errors originating from /func3.php
• Conduct regular security audits and penetration testing against the application

How to Mitigate CVE-2025-6339

Immediate Actions Required

• Take the Hospital Management System offline or restrict network access to trusted IP addresses until patched
• Implement Web Application Firewall (WAF) rules to block SQL injection attempts targeting /func3.php
• Review database logs for any signs of prior exploitation and potential data compromise
• Change all database credentials and administrative passwords as a precautionary measure

Patch Information

As of the last update on 2025-10-31, no official patch has been released by the vendor. Organizations should monitor VulDB Submission #596744 and the vendor's official channels for security updates. Given the lack of vendor remediation, affected organizations should prioritize implementing compensating controls or consider alternative healthcare management solutions.

Workarounds

• Implement input validation and output encoding at the application level by modifying the /func3.php source code to use parameterized queries
• Deploy a reverse proxy or WAF with SQL injection protection rules in front of the application
• Restrict database user permissions to minimum required privileges, limiting potential impact of successful exploitation
• Isolate the application server and database from other network segments to contain potential breaches

# Example WAF rule to block SQL injection in username1 parameter (ModSecurity format)
SecRule ARGS:username1 "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection attempt detected in username1 parameter - CVE-2025-6339',\
    tag:'application-multi',\
    tag:'language-sql',\
    tag:'attack-sqli'"