CVE-2026-6006: Patient Record Management System SQLi Flaw

CVE-2026-6006 Overview

A SQL injection vulnerability has been identified in code-projects Patient Record Management System version 1.0. The vulnerability exists in the /edit_hpatient.php file, where the ID parameter is improperly handled, allowing attackers to inject malicious SQL queries. This flaw enables remote attackers to manipulate database operations, potentially compromising patient data confidentiality, integrity, and availability.

Critical Impact

Remote attackers with low privileges can exploit this SQL injection vulnerability to access, modify, or delete sensitive patient records in healthcare management systems.

Affected Products

• code-projects Patient Record Management System 1.0
• PHP-based healthcare record systems using vulnerable /edit_hpatient.php endpoint

Discovery Timeline

• April 10, 2026 - CVE-2026-6006 published to NVD
• April 13, 2026 - Last updated in NVD database

Technical Details for CVE-2026-6006

Vulnerability Analysis

This SQL injection vulnerability (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component) resides in the /edit_hpatient.php file of the Patient Record Management System. The vulnerability occurs when user-supplied input through the ID parameter is directly incorporated into SQL queries without proper sanitization or parameterized query usage.

The exploit has been publicly disclosed, increasing the risk of exploitation in production environments. Healthcare systems are particularly sensitive targets due to the nature of protected health information (PHI) they contain. Successful exploitation requires only low-level privileges and can be initiated remotely over the network without user interaction.

Root Cause

The root cause of this vulnerability is insufficient input validation and the absence of prepared statements or parameterized queries in the /edit_hpatient.php file. When the application processes the ID parameter, it fails to sanitize special SQL characters, allowing attackers to break out of the intended query structure and inject arbitrary SQL commands. This is a classic example of improper neutralization of special elements, classified under CWE-74.

Attack Vector

The attack can be initiated remotely over the network by any authenticated user with low privileges. An attacker can craft malicious HTTP requests to the /edit_hpatient.php endpoint with a manipulated ID parameter containing SQL injection payloads.

The vulnerability allows attackers to:

• Extract sensitive patient information from the database
• Modify or delete patient records
• Potentially escalate privileges within the application
• Enumerate database structure and contents

For detailed technical analysis of the exploitation methodology, refer to the GitHub SQL CVE Documentation and VulDB Vulnerability #356562.

Detection Methods for CVE-2026-6006

Indicators of Compromise

• Unusual SQL error messages in web server logs originating from /edit_hpatient.php
• HTTP requests to /edit_hpatient.php containing SQL metacharacters (single quotes, double dashes, UNION keywords) in the ID parameter
• Database query logs showing unexpected SELECT, UPDATE, or DELETE statements with anomalous WHERE clauses
• Unauthorized data access or modifications to patient records without corresponding legitimate user activity

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in HTTP requests to /edit_hpatient.php
• Implement database activity monitoring to flag queries with unusual structures or suspicious patterns
• Configure intrusion detection systems (IDS) to alert on requests containing common SQL injection payloads targeting the ID parameter
• Review application logs for repeated requests to the vulnerable endpoint with varying ID parameter values

Monitoring Recommendations

• Enable verbose logging for the Patient Record Management System application and associated database
• Monitor for authentication anomalies following requests to /edit_hpatient.php
• Set up alerting for database queries that return abnormally large result sets
• Implement real-time log analysis to detect SQL injection attack patterns

How to Mitigate CVE-2026-6006

Immediate Actions Required

• Restrict network access to the Patient Record Management System to trusted IP addresses only
• Implement Web Application Firewall rules to filter SQL injection attempts targeting /edit_hpatient.php
• Review and audit database user permissions to apply principle of least privilege
• Enable comprehensive logging and monitoring on the affected system
• Consider taking the application offline if it contains sensitive patient data and cannot be immediately secured

Patch Information

No official vendor patch information is currently available from code-projects. System administrators should monitor the Code Projects Resource page for potential updates. In the absence of an official patch, organizations should implement the workarounds listed below and consider replacing the affected component with a secure alternative.

Additional vulnerability details can be found at VulDB Submission #794542 and VulDB CTI for #356562.

Workarounds

• Implement server-side input validation to sanitize the ID parameter, allowing only numeric values
• Modify the application code to use prepared statements or parameterized queries for all database interactions
• Deploy a reverse proxy or WAF to filter malicious requests before they reach the application
• Implement network segmentation to isolate the healthcare management system from untrusted networks
• Apply database-level access controls to limit the damage potential of successful SQL injection attacks

# Example Apache ModSecurity WAF rule to block SQL injection attempts
SecRule ARGS:ID "(?i)(union|select|insert|update|delete|drop|--|;|'|\")" \
    "id:1001,phase:2,deny,status:403,msg:'SQL Injection attempt blocked on ID parameter'"