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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.

PUBLISHED Reserved 2026-05-15 | Published 2026-06-10 | Updated 2026-06-10 | Assigner GitHub_M




MEDIUM: 4.6CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

>= 14.0.0, < 17.4.0
affected

References

github.com/...co-CMS/security/advisories/GHSA-vr9v-27gg-qgx4

cve.org (CVE-2026-46609)

nvd.nist.gov (CVE-2026-46609)

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