CVE-2025-67491 OpenEMR has Stored XSS in ub04 helper

High 8.5 Published Updated

Low-privileged users can inject malicious scripts into the billing interface, enabling session hijacking and administrative impersonation in OpenEMR.

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

What is CVE-2025-67491?

CVE-2025-67491 is a high-severity cross-site scripting vulnerability in Open-Emr Openemr, published on 25 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

OpenEMR is a free and open source electronic health records and medical practice management application. Versions 5.0.0.5 through 7.0.3.4 have a stored cross-site scripting vulnerability in the ub04 helper of the billing interface. The variable `$data` is passed in a click event handler enclosed in single quotes without proper sanitization. Thus, despite `json_encode` a malicious user can still inject a payload such as ` ac' ><img src=x onerror=alert(document.cookie)> ` to trigger the bug. This vulnerability allows low privileged users to embed malicious JS payloads on the server and perform stored XSS attack. This, in turn makes it possible for malicious users to steal the session cookies and perform unauthorized actions impersonating administrators. Version 7.0.4 patches the issue.

Weakness: CWE-79

Which versions are affected by CVE-2025-67491?

It affects 1 product.

Products include Open-Emr Openemr.

How do I fix CVE-2025-67491?

No fix has been published for CVE-2025-67491 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-2025-67491 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-67491 exists.

All Open-Emr Openemr vulnerabilities

Sources

Also known as GHSA-5fq8-jwvw-3m5w.

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