CVE-2026-19347: Hospital Management System SQLi Vulnerability

CVE-2026-19347 Overview

CVE-2026-19347 is a SQL injection vulnerability in itsourcecode Hospital Management System 1.0. The flaw resides in the /viewdoctor.php endpoint, where the delid argument is not properly sanitized before being used in a database query. Attackers can manipulate this parameter to inject arbitrary SQL statements. The vulnerability is remotely exploitable and requires low-level authenticated access. A public exploit disclosure exists, increasing the likelihood of opportunistic abuse against exposed instances. The issue is classified under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component).

Critical Impact
Remote attackers with low privileges can inject SQL statements through the delid parameter of viewdoctor.php, enabling unauthorized read, modification, or deletion of hospital records.

Affected Products

itsourcecode Hospital Management System 1.0

Discovery Timeline

2026-08-09 - CVE-2026-19347 published to NVD
2026-08-12 - Last updated in NVD database

Technical Details for CVE-2026-19347

Vulnerability Analysis

The vulnerability affects the viewdoctor.php script within the itsourcecode Hospital Management System 1.0 application. The script accepts a delid HTTP parameter and passes it into a SQL query without applying input validation or parameterized query semantics. As a result, an attacker can append SQL syntax to the parameter value and alter query logic.

Successful exploitation allows attackers to read arbitrary tables, including patient records, staff credentials, and appointment data. Depending on database privileges, attackers can also modify or destroy records, undermining the integrity of clinical data. The attack targets a web-facing PHP application typically deployed on Apache or Nginx with a MySQL backend.

The issue is categorized under [CWE-74], reflecting a broader class of injection vulnerabilities rooted in unsafe concatenation of untrusted input into interpreted contexts. Public disclosure references, including the VulDB CVE-2026-19347 entry and the GitHub Issue Report, document the exploit path.

Root Cause

The root cause is the direct interpolation of the delid HTTP parameter into a SQL statement within viewdoctor.php. The code does not use prepared statements or apply type casting to enforce integer-only values. Any attacker able to reach the endpoint controls part of the query text.

Attack Vector

The attack vector is network-based. An authenticated user sends a crafted HTTP request to /viewdoctor.php with a malicious delid value, such as an appended UNION SELECT clause or boolean-based payload. The application returns modified query results or executes side-effect statements, depending on the payload. No user interaction beyond the request itself is required.

See the VulDB Vulnerability #387183 entry for further technical documentation.

Detection Methods for CVE-2026-19347

Indicators of Compromise

HTTP requests to /viewdoctor.php containing SQL metacharacters such as ', --, UNION, or SLEEP( in the delid parameter.
Web server access logs showing repeated requests to viewdoctor.php with varying delid values indicative of automated SQLi tooling.
Unexpected database errors or elevated response times correlated with requests to the vulnerable endpoint.

Detection Strategies

Deploy web application firewall (WAF) rules that inspect the delid parameter for SQL injection payloads and block anomalous input.
Enable database query logging and alert on viewdoctor.php-originated queries that reference system tables such as information_schema.
Correlate authentication events with subsequent access to viewdoctor.php to identify low-privileged accounts probing the endpoint.

Monitoring Recommendations

Monitor HTTP 500 responses from viewdoctor.php, which frequently indicate malformed SQLi attempts.
Track outbound data volumes from the database host to detect bulk extraction consistent with UNION-based exfiltration.
Baseline normal delid values (integer IDs) and alert on non-numeric input reaching the endpoint.

How to Mitigate CVE-2026-19347

Immediate Actions Required

Restrict network access to the Hospital Management System interface to trusted management networks or VPN clients only.
Disable or remove the viewdoctor.php endpoint until a patched version is deployed if the workflow is not business-critical.
Rotate database credentials and audit database accounts used by the web application for excessive privileges.

Patch Information

At the time of publication, no vendor patch has been referenced in the NVD advisory. Administrators should monitor the IT Source Code Resource site and the VulDB CVE-2026-19347 entry for remediation updates. If a vendor fix is unavailable, apply the workarounds below.

Workarounds

Modify viewdoctor.php to cast delid to an integer using intval($_GET['delid']) before use in any SQL statement.
Replace inline SQL with parameterized queries using PDO prepared statements or mysqli_prepare with bound parameters.
Deploy a WAF ruleset such as the OWASP Core Rule Set with SQL injection signatures enabled in blocking mode.
Enforce least-privilege database accounts that cannot execute DROP, ALTER, or cross-database queries from the web application context.

bash

# Example ModSecurity rule to block SQLi patterns in the delid parameter
SecRule ARGS:delid "@rx (?i)(union(\s+all)?\s+select|sleep\s*\(|--|;|/\*)" \
    "id:1019347,phase:2,deny,status:403,msg:'Potential SQLi in delid parameter (CVE-2026-19347)'"