CVE-2026-33932: OpenEMR has Stored XSS in CCDA Preview via Unsanitized linkHtml Attributes
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.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-33932?
CVE-2026-33932 has a medium severity rating due to its potential impact on user security.
How do I fix CVE-2026-33932?
To fix CVE-2026-33932, update OpenEMR to version 8.0.0.3 or later.
What type of vulnerability is CVE-2026-33932?
CVE-2026-33932 is classified as a stored cross-site scripting (XSS) vulnerability.
Which versions of OpenEMR are affected by CVE-2026-33932?
OpenEMR versions prior to 8.0.0.3 are affected by CVE-2026-33932.
What components of OpenEMR does CVE-2026-33932 impact?
CVE-2026-33932 specifically impacts the CCDA document preview feature in OpenEMR.