CVE-2026-124448
OpenEMR before 8.3.0 Stored XSS via CCDA/CCD Preview XSLT Attributes
CVSS Score
7.6
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | openemr |
| Product | openemr |
| Published | Nov 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low
Affected Versions
openemr / openemr
0 < 8.3.0
References
Credits
Alpastx