CVE-2026-14659: Hospital Management System SQLi Vulnerability

CVE-2026-14659 Overview

CVE-2026-14659 is a SQL injection vulnerability in itsourcecode Hospital Management System 1.0. The flaw resides in the /patientappointment.php script, where the patiente parameter is passed directly into a database query without proper sanitization. An authenticated remote attacker can manipulate the parameter to inject arbitrary SQL statements against the backing database.

The issue is classified under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component). Public disclosure has occurred through VulDB and a GitHub issue tracker, and proof-of-concept details are available.

Critical Impact
Remote attackers with low-privileged access can read, modify, or exfiltrate patient records stored in the Hospital Management System database.

Affected Products

itsourcecode Hospital Management System 1.0
Vulnerable component: /patientappointment.php
Vulnerable parameter: patiente

Discovery Timeline

2026-07-04 - CVE-2026-14659 published to NVD
2026-07-06 - Last updated in NVD database

Technical Details for CVE-2026-14659

Vulnerability Analysis

The vulnerability affects the appointment handling logic exposed through /patientappointment.php. User-controlled input from the patiente argument is concatenated into a SQL statement executed against the backend database. Because the input is neither parameterized nor escaped, attacker-supplied SQL syntax alters the query structure.

Exploitation requires network access to the application and a low-privileged authenticated session. No user interaction is needed. Attack complexity is low, and public technical details lower the barrier further. Successful exploitation impacts confidentiality, integrity, and availability of the underlying database at limited scope.

Root Cause

The root cause is missing input neutralization on the patiente request parameter. The application constructs SQL queries through string concatenation rather than prepared statements with bound parameters. Any character passed by the client, including quotes, comments, and UNION keywords, is interpreted as SQL syntax rather than data.

Attack Vector

An attacker sends a crafted HTTP request to /patientappointment.php with malicious SQL payloads placed in the patiente parameter. Typical injection techniques include boolean-based blind extraction, UNION-based data retrieval, and time-based blind attacks. Because Hospital Management System stores patient records, appointments, and staff credentials, attackers can enumerate schemas and dump sensitive tables. Refer to the VulDB CVE Details and the GitHub Issue Discussion for reproduction context.

Detection Methods for CVE-2026-14659

Indicators of Compromise

HTTP requests to /patientappointment.php containing SQL metacharacters in the patiente parameter, such as single quotes, --, UNION SELECT, or SLEEP(.
Web server logs showing repeated requests to /patientappointment.php with encoded payloads or unusually long query strings.
Unexpected database errors or slow query log entries originating from the appointment endpoint.

Detection Strategies

Deploy Web Application Firewall (WAF) rules targeting SQL injection signatures against the patiente parameter of /patientappointment.php.
Enable database query logging and alert on anomalous query patterns such as UNION operations or information_schema access from the web application user.
Correlate authentication logs with request bursts to /patientappointment.php to identify low-privileged accounts abusing the endpoint.

Monitoring Recommendations

Ingest web server and database logs into a centralized analytics platform and alert on SQL error strings such as You have an error in your SQL syntax.
Baseline normal traffic to the appointment endpoint and flag deviations in request rate, response size, or response latency.
Track outbound connections from the database host to detect data exfiltration following successful injection.

How to Mitigate CVE-2026-14659

Immediate Actions Required

Restrict access to /patientappointment.php at the network or reverse-proxy layer until a fix is applied.
Rotate database credentials used by the application and audit stored patient records for unauthorized modification.
Deploy WAF signatures that block SQL injection payloads on the patiente parameter.

Patch Information

No official vendor patch has been published for itsourcecode Hospital Management System 1.0 at the time of NVD publication. Administrators should monitor the IT Source Code Hub and the VulDB Vulnerability Profile for future updates. Where source access exists, developers should replace inline SQL with parameterized queries or prepared statements using PDO or MySQLi bound parameters.

Workarounds

Add server-side input validation that rejects non-numeric values in the patiente parameter if that field is expected to be an identifier.
Enforce least privilege on the database account used by the web application, removing rights to information_schema, DDL, and cross-database access.
Place the application behind an authenticated reverse proxy and disable the appointment endpoint for unauthenticated or unnecessary user roles.

bash

# Example ModSecurity rule blocking SQL metacharacters in the patiente parameter
SecRule ARGS:patiente "@rx (?i)(union(\s|/\*.*\*/)+select|sleep\s*\(|--|';)" \
    "id:1026146590,phase:2,deny,status:403,msg:'CVE-2026-14659 SQLi attempt on patientappointment.php'"