{"id":"CVE-2026-124448","published":"2026-11-08T14:18:11.960","lastModified":"2026-11-10T21:46:33.650","description":"OpenEMR before 8.3.0 contains a stored cross-site scripting vulnerability in the CCDA/CCD preview stylesheets, where cda.xsl copies event-handler attributes whose values evade a character denylist and ccd.xsl copies table-cell attributes unsanitized into preview HTML. Authenticated users can upload a crafted CCDA/CCD document with onmouseover, onclick, or onfocus handlers to execute script in a clinician's session when previewed.","cvssScore":7.6,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/openemr/openemr/security/advisories/GHSA-rghp-vwvf-c2r9","tags":[]},{"url":"https://www.vulncheck.com/advisories/openemr-before-8.3.0-stored-xss-via-ccda-ccd-preview-xslt-attributes","tags":[]},{"url":"https://github.com/openemr/openemr/security/advisories/GHSA-rghp-vwvf-c2r9","tags":[]}],"exploitRefs":[{"url":"https://github.com/openemr/openemr/security/advisories/GHSA-rghp-vwvf-c2r9","tags":[]},{"url":"https://github.com/openemr/openemr/security/advisories/GHSA-rghp-vwvf-c2r9","tags":[]}],"hasPoc":true,"ai":null}