CVE-2025-5208: Online Hospital Management System SQL Flaw

CVE-2025-5208 Overview

A critical SQL injection vulnerability has been identified in SourceCodester Online Hospital Management System version 1.0. The vulnerability exists in the /admin/check_availability.php file, where improper handling of the emailid parameter allows attackers to inject malicious SQL queries. This flaw can be exploited remotely without authentication, potentially compromising the integrity, confidentiality, and availability of the hospital management database.

Critical Impact

Unauthenticated remote attackers can exploit this SQL injection vulnerability to extract sensitive patient data, modify hospital records, or potentially gain unauthorized access to the underlying database server.

Affected Products

• Campcodes Online Hospital Management System 1.0
• SourceCodester Online Hospital Management System 1.0

Discovery Timeline

• 2025-05-26 - CVE-2025-5208 published to NVD
• 2025-06-05 - Last updated in NVD database

Technical Details for CVE-2025-5208

Vulnerability Analysis

This SQL injection vulnerability affects the email availability checking functionality in the administrative panel of the Online Hospital Management System. The vulnerable endpoint /admin/check_availability.php accepts user-supplied input through the emailid parameter without proper sanitization or parameterized queries. When processing email availability requests, the application directly concatenates the user input into SQL queries, creating a classic injection point.

The attack can be initiated remotely by any unauthenticated user who can access the administrative interface. Since the exploit has been publicly disclosed, organizations running this software face immediate risk of exploitation. Healthcare systems are particularly sensitive targets due to the protected health information (PHI) they contain, making this vulnerability especially concerning from a regulatory and privacy standpoint.

Root Cause

The root cause of this vulnerability is the failure to implement proper input validation and parameterized queries (prepared statements) when handling the emailid parameter. The application directly incorporates user-controlled input into SQL query strings, violating fundamental secure coding practices for database interactions. This represents a CWE-89 (SQL Injection) vulnerability, with the broader classification of CWE-74 (Injection) also applicable.

Attack Vector

The vulnerability is exploitable over the network without requiring authentication or user interaction. An attacker can craft malicious HTTP requests to the /admin/check_availability.php endpoint with SQL injection payloads embedded in the emailid parameter. The injection allows attackers to:

1. Extract sensitive data from the database including patient records, credentials, and administrative information
2. Modify or delete database records, potentially corrupting hospital operations
3. Bypass authentication mechanisms to gain administrative access
4. Potentially execute operating system commands if database permissions allow

The attack surface is accessible to any remote attacker who can reach the web application, making this a high-risk vulnerability for internet-facing deployments.

Detection Methods for CVE-2025-5208

Indicators of Compromise

• Anomalous HTTP requests to /admin/check_availability.php containing SQL syntax characters such as single quotes, semicolons, or SQL keywords (SELECT, UNION, DROP)
• Database error messages appearing in web server logs indicating failed or unusual query patterns
• Unexpected database queries originating from the web application user account, particularly those accessing multiple tables or system catalogs
• Evidence of data exfiltration or unauthorized bulk data access in database audit logs

Detection Strategies

• Deploy Web Application Firewall (WAF) rules specifically targeting SQL injection patterns in the emailid parameter
• Implement database activity monitoring to detect anomalous query patterns from the application service account
• Configure intrusion detection systems (IDS) to alert on SQL injection attack signatures targeting PHP applications
• Review web server access logs for suspicious requests to /admin/check_availability.php with encoded or malformed parameters

Monitoring Recommendations

• Enable verbose logging on the database server to capture all queries from the hospital management application
• Set up real-time alerting for database errors or exceptions related to syntax errors in queries
• Monitor for unusual data access patterns, particularly bulk retrieval of patient records or credential tables
• Implement file integrity monitoring on the application to detect unauthorized modifications

How to Mitigate CVE-2025-5208

Immediate Actions Required

• Restrict access to the /admin/check_availability.php endpoint using network-level controls or authentication requirements
• Consider taking the affected application offline until a patch is available or proper remediation is implemented
• Implement a Web Application Firewall (WAF) with SQL injection protection rules as a compensating control
• Review database audit logs for evidence of prior exploitation attempts or data breaches

Patch Information

No official vendor patch has been identified in the available references. Organizations should monitor the SourceCodester website for security updates. Additional technical details and community discussion can be found in the GitHub Issue Discussion and VulDB advisory.

Given the lack of an official patch, organizations should prioritize implementing secure coding fixes by modifying the vulnerable code to use parameterized queries or prepared statements for all database interactions involving user input.

Workarounds

• Implement input validation on the emailid parameter to reject any non-email characters before processing
• Deploy a reverse proxy with request filtering to block SQL injection payloads targeting the vulnerable endpoint
• Restrict database user permissions for the application to minimum required privileges, preventing DROP, ALTER, or system-level operations
• Segment the hospital management system network to limit exposure and implement strict access controls

# Example WAF rule configuration (ModSecurity)
# Block SQL injection attempts on the vulnerable endpoint
SecRule REQUEST_URI "@contains /admin/check_availability.php" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'Potential SQL Injection in emailid parameter',\
    chain"
    SecRule ARGS:emailid "@detectSQLi" "t:none"