CVE-2019-12741: XSS exists in the HAPI FHIR testpage overlay module of the HAPI FHIR library before 3.8.0

Q: How do I fix CVE-2019-12741?

hapi fhir: upgrade to 3.8.0. Exact commands for each OS are on this page.

Q: Is CVE-2019-12741 being exploited?

CVE-2019-12741 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-12741 affect?

CVE-2019-12741 affects hapi fhir. Severity is medium (CVSS 6.1). XSS exists in the HAPI FHIR testpage overlay module of the HAPI FHIR library before 3.8.0. The attack involves unsanitized HTTP parameters being output in a form page, allowing attackers to leak cookies and other sensitive information from

Q: How urgent is CVE-2019-12741?

Priority 39/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADE

CVE-2019-12741 is a medium-severity flaw (CVSS 6.1) affecting hapi fhir. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

XSS exists in the HAPI FHIR testpage overlay module of the HAPI FHIR library before 3.8.0. The attack involves unsanitized HTTP parameters being output in a form page, allowing attackers to leak cookies and other sensitive information from ca/uhn/fhir/to/BaseController.java via a specially crafted URL. (This module is not generally used in production systems so the attack surface is expected to be low, but affected systems are recommended to upgr

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Weakness	CWE-79
Published	2019-06-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fhir

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-06-05 15:29 UTCPublished CVE record published
2026-06-17 02:15 UTCUpdated Record last modified

fhir hapi fhir UPGRADE

Affected: < 3.8.0

Fixed in: 3.8.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy hapi-fhir || rpm -q hapi-fhir || hapi-fhir --version

2. UPGRADE to 3.8.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade hapi-fhir

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade hapi-fhir

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-12741?

hapi fhir: upgrade to 3.8.0. Exact commands for each OS are on this page.

Is CVE-2019-12741 being exploited?

CVE-2019-12741 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-12741 affect?

CVE-2019-12741 affects hapi fhir. Severity is medium (CVSS 6.1). XSS exists in the HAPI FHIR testpage overlay module of the HAPI FHIR library before 3.8.0. The attack involves unsanitized HTTP parameters being output in a form page, allowing attackers to leak cookies and other sensitive information from

How urgent is CVE-2019-12741?

Priority 39/100. No elevated risk signals yet.

Software pages

Java vulnerabilities

Related CVEs

CVE-2021-32053 MEDIUM 5.3 UPGRADE JPA Server in HAPI FHIR before 5.4.0 allows a user to deny service (e.g., disable access to the database after

References

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