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CVE-2026-33932

OpenEMR has Stored XSS in CCDA Preview via Unsanitized linkHtml Attributes

Published: Mar 25, 2026Updated: Mar 26, 2026 Sources: CVE List NVDCWE-79
7.6HIGH
NVD MITRE
EPSS Score
0.2%
Top 91.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:CC:HI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

openemropen-emr
On-premWeb App
Enterprise Software / document-mgmt
openemropenemr
On-premWeb App
Enterprise Software / itsm-monitoring
open-emross-projectUSEnterprise Softwareaka openemr
openemross-projectEnterprise Softwareaka openemr/openemr, openemr

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
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References

https://github.com/openemr/openemr/commit/95e6078889b5399b12b59117f998560cd94bd47d
github.com
https://github.com/openemr/openemr/releases/tag/v8_0_0_3
github.com
https://github.com/openemr/openemr/security/advisories/GHSA-g77x-9p3x-2j8f
github.com

Timeline

Published
Mar 25, 2026
Last Updated
Mar 26, 2026

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