CVE-2026-33932
HIGHCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
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2Tags
Description
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0.3, a stored cross-site scripting vulnerability in the CCDA document preview allows an attacker who can upload or send a CCDA document to execute arbitrary JavaScript in a clinician's browser session when the document is previewed. The XSL stylesheet sanitizes attributes for all other narrative elements but not for `linkHtml`, allowing `href="javascript:..."` and event handler attributes to pass through unchanged. Version 8.0.0.3 patches the issue.
Analysis
A stored cross-site scripting (XSS) vulnerability exists in OpenEMR's CCDA document preview functionality that allows authenticated attackers to execute arbitrary JavaScript in clinician browser sessions. OpenEMR versions prior to 8.0.0.3 are affected. …
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Remediation
Within 24 hours: Disable CCDA document preview functionality if operationally feasible, or restrict access to trusted users only. Within 7 days: Implement Web Application Firewall (WAF) rules to block javascript: protocols and event handlers in document processing, and conduct inventory of all CCDA documents processed in the past 90 days. …
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