CVE-2026-33348 OpenEMR has Stored XSS in patient encounter Eye Exam form $CHRONIC2 and $CHRONIC3
Authenticated users can inject malicious JavaScript into Eye Exam forms, which executes for other users viewing the encounter history.
- 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-2026-33348?
CVE-2026-33348 is a high-severity cross-site scripting vulnerability in Open-Emr Openemr, published on 25 Mar 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. Users with the `Notes - my encounters` role can fill Eye Exam forms in patient encounters. The answers to the form are displayed on the encounter page and in the visit history for the users with the same role. Versions prior to 8.0.0.3 have a stored cross-site scripting (XSS) vulnerability in the function to display the form answers, allowing any authenticated attacker with the specific role to insert arbitrary JavaScript into the system by entering malicious payloads to the form answers. The JavaScript code is later executed by any user with the form role when viewing the form answers in the patient encounter pages or visit history. Version 8.0.0.3 contains a patch.
Weakness: CWE-79
Which versions are affected by CVE-2026-33348?
It affects 1 product.
Products include Open-Emr Openemr.
How do I fix CVE-2026-33348?
No fix has been published for CVE-2026-33348 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-2026-33348 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33348 exists.
Other vulnerabilities in Open-Emr Openemr
- CVE-2026-24898 OpenEMR has an Unauthenticated MedEx Token Disclosure
- CVE-2026-24849 OpenEMR Arbitrary File Read Vulnerability
- CVE-2026-24908 OpenEMR has SQL Injection in Patient API Sort Parameter
- CVE-2022-2734 Improper Restriction of Rendered UI Layers or Frames in openemr/openemr
- CVE-2024-22611 SQL injection in n/a
Sources
Also known as GHSA-6ch2-p26g-x33h.