CVE-2026-62293

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

MEDIUM
5
CVSS Score
Published: August 7, 2026 at 07:26 PM UTC
Updated: September 9, 2026 at 09:17 PM UTC
1 product affected across 1 vendorHL7 Fhir Core

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Severity
MEDIUM5
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 6.9.11
Affected range stops below 6.9.11, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5MEDIUMGitHub_M
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-20CWE-79

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