CVE-2026-11513: Hospital Management System SQLi Flaw

CVE-2026-11513 Overview

CVE-2026-11513 is a SQL injection vulnerability in itsourcecode Hospital Management System 1.0. The flaw resides in the /adminaccount.php script, where the Date parameter is concatenated into a SQL query without proper sanitization. Authenticated attackers can manipulate the Date argument to inject arbitrary SQL syntax, allowing unauthorized read or write operations against the underlying database. The attack is remotely exploitable over the network and a public exploit has been disclosed. The weakness is classified under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component).

Critical Impact
Remote attackers with low-privilege access can inject SQL statements through the Date parameter in /adminaccount.php, exposing patient and administrative records stored in the application database.

Affected Products

itsourcecode Hospital Management System 1.0
Component: /adminaccount.php
Vulnerable parameter: Date

Discovery Timeline

2026-06-08 - CVE-2026-11513 published to NVD
2026-06-08 - Last updated in NVD database

Technical Details for CVE-2026-11513

Vulnerability Analysis

The vulnerability is a classic SQL injection in the administrative account page of the application. The /adminaccount.php endpoint accepts a Date request parameter and embeds the supplied value directly into a SQL statement executed against the backend database. Because the value is neither parameterized nor escaped, an attacker can break out of the original query context and append arbitrary SQL clauses.

The EPSS probability is 0.033% with a percentile of 10.22, indicating low predicted exploitation activity at this time. However, public proof-of-concept material referenced in the VulDB entry for CVE-2026-11513 and the GitHub issue discussion lowers the barrier to weaponization.

Root Cause

The root cause is improper neutralization of special elements passed to the SQL interpreter. The application constructs queries by concatenating the Date parameter from the HTTP request into the SQL string, rather than using prepared statements or bound parameters. Any payload containing SQL metacharacters such as single quotes, comments, or UNION keywords is interpreted as code by the database engine.

Attack Vector

An authenticated attacker with low privileges submits a crafted value in the Date field of a request to /adminaccount.php. Typical exploitation techniques include UNION SELECT payloads to extract data from other tables, boolean-based blind injection to enumerate schema contents, and time-based payloads using database sleep functions when responses are not directly reflected. Because the endpoint is reachable over the network, exploitation requires no local access and no user interaction beyond the attacker's own session.

No verified exploit code is published in a reviewed repository. Refer to the VulDB submission #836162 for the disclosed payload details.

Detection Methods for CVE-2026-11513

Indicators of Compromise

HTTP requests to /adminaccount.php containing SQL metacharacters such as ', --, /*, UNION, SELECT, or SLEEP( in the Date parameter.
Web server access logs showing repeated requests to /adminaccount.php with abnormally long or encoded Date values.
Database error messages referencing syntax errors near the Date value returned to client sessions.
Outbound database connections or queries producing unusually large result sets from administrative pages.

Detection Strategies

Deploy a web application firewall (WAF) signature that inspects the Date parameter on /adminaccount.php for SQL injection patterns.
Enable database query logging and alert on queries containing UNION SELECT, stacked queries, or tautologies such as OR 1=1 originating from the application service account.
Correlate authentication logs with /adminaccount.php access patterns to identify low-privilege accounts performing data enumeration.

Monitoring Recommendations

Monitor PHP error logs for mysqli or PDO exceptions tied to malformed Date input.
Track response size and latency anomalies on /adminaccount.php that may indicate blind or time-based extraction.
Review administrative session activity for sequential parameter fuzzing against form fields.

How to Mitigate CVE-2026-11513

Immediate Actions Required

Restrict network access to the Hospital Management System administrative interface using firewall or VPN controls until a fix is applied.
Rotate credentials for all administrative accounts and the database user backing the application.
Audit recent activity on /adminaccount.php for evidence of injection attempts using the indicators above.
Apply WAF rules that block SQL metacharacters in the Date parameter as a compensating control.

Patch Information

No vendor patch has been published in the references available at the time of NVD publication. Operators should monitor the itsourcecode site and the VulDB record for CVE-2026-11513 for updates. Until a fix is released, replace direct query construction in /adminaccount.php with parameterized statements using prepared queries.

Workarounds

Modify /adminaccount.php to use prepared statements with bound parameters for the Date value.
Apply server-side input validation that allows only ISO date format characters (0-9 and -) for the Date parameter.
Limit database user privileges so the application account cannot read sensitive tables beyond its required scope.
Place the application behind a WAF configured with OWASP Core Rule Set SQL injection rules.

bash

# Configuration example
# Example ModSecurity rule fragment to block SQLi in the Date parameter on /adminaccount.php
SecRule REQUEST_URI "@streq /adminaccount.php" \
    "id:1026011513,phase:2,chain,deny,status:403,log,msg:'CVE-2026-11513 SQLi attempt on Date parameter'"
    SecRule ARGS:Date "@detectSQLi" "t:none,t:urlDecodeUni"