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CVE-2026-62293

HAPI FHIR: Stored XSS in scan report via unescaped IG and profile titles

Published: Aug 7, 2026Updated: Aug 7, 2026 Sources: CVE List NVDCWE-20
5.0MEDIUM
NVD MITRE
EPSS Score
0.1%
Top 98.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to 6.9.11, the hidden scan command concatenates attacker-controlled Implementation Guide titles, profile titles, and source references into scan.html without escaping in Scanner.java. As a result, a user who scans an attacker-supplied IG/profile and then opens or publishes the generated local/CI HTML report can trigger stored cross-site scripting, executing attacker-controlled JavaScript in the report's browser context. This issue is fixed in version 6.9.11.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:CC:LI:LA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-20CWE-79

Affected Products

hapifhir
oss-projectaka hl7 fhir core, org.hl7.fhir.core
org.hl7.fhir.coreOn-prem
OSS Libraries / generic-library
ca.uhn.hapi.fhir:org.hl7.fhir.validationOn-prem
OSS Libraries / generic-library
ca.uhn.hapi.fhir:org.hl7.fhir.validation.cliOn-prem
OSS Libraries / generic-library

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

3 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/hapifhir/org.hl7.fhir.core/commit/3a9befd8845f003095ed75f4b24b9a80630275be
github.com
https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-6vcw-fq7v-4vhw
github.com

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