CVE-2026-13532: Hospital Management System SQLi Flaw

CVE-2026-13532 Overview

CVE-2026-13532 is a SQL injection vulnerability in itsourcecode Hospital Management System 1.0. The flaw resides in the /departmentDoctor.php script, where the deptid request parameter is passed to a database query without proper sanitization. A remote attacker with low-level privileges can inject arbitrary SQL statements through this parameter. Public exploit details have been released, increasing the likelihood of opportunistic attacks against exposed installations. The vulnerability is categorized under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component).

Critical Impact
Remote attackers can manipulate backend SQL queries through the deptid parameter, potentially reading, modifying, or deleting hospital records including patient and staff data.

Affected Products

itsourcecode Hospital Management System 1.0
/departmentDoctor.php endpoint
Deployments exposing the deptid parameter to untrusted input

Discovery Timeline

2026-06-29 - CVE-2026-13532 published to NVD
2026-06-29 - Last updated in NVD database

Technical Details for CVE-2026-13532

Vulnerability Analysis

The vulnerability affects the department-doctor listing feature exposed through /departmentDoctor.php. The script accepts the deptid argument from an HTTP request and concatenates it directly into a SQL query executed against the backend database. Because the application performs no parameterization or input validation on deptid, an attacker can break out of the intended query context and append arbitrary SQL clauses.

Exploitation requires network access to the application and a low-privilege session. No user interaction is required. Public disclosure of the exploit method lowers the barrier for scripted attacks against internet-facing installations.

Root Cause

The root cause is improper neutralization of user-controlled input before it reaches the SQL interpreter. The application constructs queries using string concatenation instead of prepared statements or parameter binding. Any character with special SQL meaning, including single quotes, comment sequences, and UNION keywords, is executed as query syntax rather than data.

Attack Vector

An authenticated attacker sends a crafted HTTP request to /departmentDoctor.php with a malicious deptid value. Typical payloads include boolean-based, union-based, and time-based injection techniques used to enumerate schema information, extract records, or manipulate data. Because the vulnerable endpoint is remotely reachable, attackers can automate exploitation against exposed instances located through search engine reconnaissance.

See the VulDB entry for CVE-2026-13532 and the public GitHub issue for exploit references.

Detection Methods for CVE-2026-13532

Indicators of Compromise

HTTP requests to /departmentDoctor.php containing SQL metacharacters such as ', --, UNION SELECT, or SLEEP( in the deptid parameter.
Unexpected database errors or long response times originating from the department-doctor endpoint.
Web server access logs showing repeated deptid variations from a single source address.

Detection Strategies

Deploy web application firewall (WAF) rules that flag SQL injection patterns targeting the deptid parameter.
Enable database query logging and correlate anomalous SELECT, UNION, or schema-enumeration queries with the web tier.
Review authentication logs for low-privilege accounts issuing high volumes of requests to /departmentDoctor.php.

Monitoring Recommendations

Alert on HTTP 500 responses tied to departmentDoctor.php, which often indicate injection attempts triggering SQL syntax errors.
Monitor outbound database traffic for unusual result-set sizes suggesting bulk data extraction.
Track new or unexpected users, roles, or grants added to the hospital management database.

How to Mitigate CVE-2026-13532

Immediate Actions Required

Restrict network access to the Hospital Management System until a vendor fix is applied.
Enforce a WAF policy blocking SQL injection payloads on /departmentDoctor.php.
Rotate database credentials and audit accounts used by the web application for excessive privileges.

Patch Information

No vendor patch has been referenced in the published advisory. Administrators should monitor the itsourcecode website and the VulDB record for updates. Until a fix is released, code owners should refactor /departmentDoctor.php to use prepared statements with bound parameters when handling deptid.

Workarounds

Apply server-side input validation that constrains deptid to a numeric whitelist before it reaches the query layer.
Enforce least-privilege database accounts so the web user cannot read tables outside the department-doctor scope.
Disable verbose SQL error messages returned to the browser to reduce attacker feedback.

bash

# Example: nginx location rule to block non-numeric deptid values
location = /departmentDoctor.php {
    if ($arg_deptid !~ ^[0-9]+$) {
        return 400;
    }
    include fastcgi_params;
    fastcgi_pass unix:/var/run/php-fpm.sock;
}