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Description

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0.3, the POST parameter `title` is reflected back in a JSON response built with `json_encode()`. Because the response is served with a `text/html` Content-Type, the browser interprets injected HTML/script tags rather than treating the output as JSON. An authenticated attacker can craft a request that executes arbitrary JavaScript in a victim's session. Version 8.0.0.3 contains a fix.

PUBLISHED Reserved 2026-03-24 | Published 2026-03-25 | Updated 2026-03-26 | Assigner GitHub_M




MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

< 8.0.0.3
affected

References

github.com/...penemr/security/advisories/GHSA-wwhf-6cvc-6766

github.com/...ommit/64e8befa0a49f85dd5e2a85c91f3f8b9e565896f

github.com/openemr/openemr/releases/tag/v8_0_0_3

cve.org (CVE-2026-33911)

nvd.nist.gov (CVE-2026-33911)

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