CVE-2026-11512 itsourcecode Hospital Management System billing.php cross site scripting

Medium 5.3 Published Updated

Remote attackers can inject malicious scripts via the patientid parameter in billing.php, potentially compromising user sessions and data.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-11512?

CVE-2026-11512 is a medium-severity cross-site scripting vulnerability in itsourcecode Hospital Management System, published on 8 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A security vulnerability has been detected in itsourcecode Hospital Management System 1.0. This issue affects some unknown processing of the file /billing.php. The manipulation of the argument patientid leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used.

Weakness: CWE-94, CWE-79

Which versions are affected by CVE-2026-11512?

How do I fix CVE-2026-11512?

No fix has been published for CVE-2026-11512 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-11512 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11512 exists.

Sources

Also known as GHSA-4h24-fgh6-m47f.

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