CVE-2026-46609

Name: CVE-2026-46609
Creator: NVD / NIST
Published: 2026-06-10T17:16:37.123+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.6/10EPSS 0.14%

Last modified Jun 17, 2026

CVE-2026-46609 is a medium-severity vulnerability rated 4.6/10 on the CVSS scale. Umbraco is an ASP.NET CMS. From version 14.0.0 to before version 17.4.0, authenticated users are able to inject HTML into an input field, which is rendered in the confirmation dialog without proper output encoding. EPSS estimates a 0.14% chance of exploitation in the next 30 days.

Description

Umbraco is an ASP.NET CMS. From version 14.0.0 to before version 17.4.0, authenticated users are able to inject HTML into an input field, which is rendered in the confirmation dialog without proper output encoding. This issue has been patched in version 17.4.0.

Metrics

CVSS 3.1

4.6/10

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

EPSS Probability

0.14%

3.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Umbraco	Umbraco Cms	>= 14.0.0, < 17.4.0

References

https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-vr9v-27gg-qgx4Vendor Advisory

Timeline

Published: Jun 10, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-46609?

How severe is CVE-2026-46609?

CVE-2026-46609 has a CVSS score of 4.6/10 (MEDIUM severity). The EPSS model estimates a 0.14% probability of exploitation in the next 30 days.

How do I fix CVE-2026-46609?

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-2026-46609?

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

Scan your code now

Source: NVD / NIST