CVE-2021-4295

Name: CVE-2021-4295
Creator: NVD / NIST
Published: 2022-12-29T09:15:08.223+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.72%

Last modified Jun 17, 2026

CVE-2021-4295 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A vulnerability classified as problematic was found in ONC code-validator-api up to 1.0.30. This vulnerability affects the function vocabularyValidationConfigurations of the file src/main/java/org/sitenv/vocabularies/configuration/CodeValidatorApiConfiguration.java of the component XML Handler. EPSS estimates a 0.72% chance of exploitation in the next 30 days.

Description

A vulnerability classified as problematic was found in ONC code-validator-api up to 1.0.30. This vulnerability affects the function vocabularyValidationConfigurations of the file src/main/java/org/sitenv/vocabularies/configuration/CodeValidatorApiConfiguration.java of the component XML Handler. The manipulation leads to xml external entity reference. Upgrading to version 1.0.31 is able to address this issue. The name of the patch is fbd8ea121755a2d3d116b13f235bc8b61d8449af. It is recommended to upgrade the affected component. VDB-217018 is the identifier assigned to this vulnerability.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.72%

49.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Healthit	Code-Validator-Api	< 1.0.31

References

https://github.com/onc-healthit/code-validator-api/commit/fbd8ea121755a2d3d116b13f235bc8b61d8449afPatch, Third Party Advisory
https://github.com/onc-healthit/code-validator-api/pull/97Third Party Advisory
https://github.com/onc-healthit/code-validator-api/releases/tag/1.0.31Third Party Advisory
https://vuldb.com/?ctiid.217018Third Party Advisory
https://vuldb.com/?id.217018Third Party Advisory
https://github.com/onc-healthit/code-validator-api/commit/fbd8ea121755a2d3d116b13f235bc8b61d8449afPatch, Third Party Advisory
https://github.com/onc-healthit/code-validator-api/pull/97Third Party Advisory
https://github.com/onc-healthit/code-validator-api/releases/tag/1.0.31Third Party Advisory
https://vuldb.com/?ctiid.217018Third Party Advisory
https://vuldb.com/?id.217018Third Party Advisory

Timeline

Published: Dec 29, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-4295?

How severe is CVE-2021-4295?

CVE-2021-4295 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.72% probability of exploitation in the next 30 days.

How do I fix CVE-2021-4295?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-4295?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST