CVE-2026-62293
HAPI FHIR: Stored XSS in scan report via unescaped IG and profile titles
CVSS Score
5.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-20 CWE-79 |
| Vendor | hapifhir |
| Product | org.hl7.fhir.core |
| Published | Aug 7, 2026 |
| Last Updated | Aug 7, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
hapifhir / org.hl7.fhir.core
< 6.9.11
hapifhir / ca.uhn.hapi.fhir:org.hl7.fhir.validation
< 6.9.11
hapifhir / ca.uhn.hapi.fhir:org.hl7.fhir.validation.cli
< 6.9.11