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CVE-2026-62293— HAPI FHIR: Stored XSS in scan report via unescaped IG and profile titles

Quick assessment

Affected
hapifhir org.hl7.fhir.core
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

hapifhir hl7 fhir core是hapifhir组织开源的一套医疗健康数据交换标准核心库。 hapifhir hl7 fhir core 6.9.11之前版本存在安全漏洞，该漏洞源于隐藏的扫描命令未对攻击者控制的Implementation Guide标题、profile标题和源引用进行转义，可能导致存储型跨站脚本攻击，在浏览器上下文中执行攻击者控制的JavaScript。

CVSS 5.0 · Medium EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

Affected Version Matrix 3

VendorProduct Version RangeStatus
hapifhir ca.uhn.hapi.fhir:org.hl7.fhir.validation < 6.9.11 affected
hapifhir ca.uhn.hapi.fhir:org.hl7.fhir.validation.cli < 6.9.11 affected
hapifhir org.hl7.fhir.core < 6.9.11 affected
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I. Basic Information for CVE-2026-62293

Vulnerability Information
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Vulnerability Title
HAPI FHIR: Stored XSS in scan report via unescaped IG and profile titles
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
hapifhir hl7 fhir core 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
hapifhir hl7 fhir core是hapifhir组织开源的一套医疗健康数据交换标准核心库。 hapifhir hl7 fhir core 6.9.11之前版本存在安全漏洞，该漏洞源于隐藏的扫描命令未对攻击者控制的Implementation Guide标题、profile标题和源引用进行转义，可能导致存储型跨站脚本攻击，在浏览器上下文中执行攻击者控制的JavaScript。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
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 -

II. Public POCs for CVE-2026-62293

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III. Intelligence Information for CVE-2026-62293

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Patches & Fixes for CVE-2026-62293 (1)

Vendor Advisories for CVE-2026-62293 (1)

Same Patch Batch · hapifhir · 2026-08-07 · 3 CVEs total

CVE-2026-62295 7.5 HIGH HAPI FHIR: JSON utility parser unbounded recursion causes StackOverflow denial of service
CVE-2026-62296 7.5 HIGH HAPI FHIR: XHTML narrative parser unbounded recursion causes StackOverflow denial of servi

IV. Related Vulnerabilities

Same product: org.hl7.fhir.core
Same vendor: hapifhir
Same weakness: CWE-20