OpenEMR up to 8.0.0.3 Notes cross site scripting

Summaryinfo

A vulnerability labeled as problematic has been found in OpenEMR up to 8.0.0.3. Affected by this issue is some unknown functionality of the component Notes Handler. Such manipulation leads to cross site scripting. This vulnerability is uniquely identified as CVE-2026-33348. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in OpenEMR up to 8.0.0.3 and classified as problematic. Affected by this issue is an unknown part of the component Notes Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-33348 since 03/18/2026. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 8.0.0.3 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch f488efbe3eb7f17d0f057f960020cb611149f8a2 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

• Business Process Management Software

Name

• OpenEMR

Version

• 8.0.0.0
• 8.0.0.1
• 8.0.0.2
• 8.0.0.3

License

• open-source

Website

• Product: https://github.com/openemr/openemr/

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