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CVE-2026-33911

OpenEMR is a free and open source electronic health records and medical practice management application.

Published Mar 25, 2026 · updated Jun 17, 2026 · open-emr openemr

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 is reflected back in a JSON response built with . Because the response is served with a 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.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 25, 2026 · NIST NVD

    Detected

    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 is reflected back in a JSON response built with . Because the response is served with a Content-Type, the browser interprets injected HTML/script tags rather than treating the output as JSON. An authenticated attacker can craft a request that execute

  2. Jun 17, 2026 · NIST NVD

    Updated

    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 is reflected back in a JSON response built with . Because the response is served with a Content-Type, the browser interprets injected HTML/script tags rather than treating the output as JSON. An authenticated attacker can craft a request that execute

Affected

  • cpe open-emr/openemrversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-33911

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-33911

    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 is reflected back in a JSON response built with . Because the response is served with a Content

    nvd.nist.gov

References