4.6Medium
CVE-2026-46609Umbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confirmation dialog
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.
Weakness (CWE):
CWE-79
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| umbraco | Umbraco-CMS | >= 14.0.0, < 17.4.0 |
References and patches
CPE matches (NVD) (1)
cpe:2.3:a:umbraco:umbraco_cms:*:*:*:*:*:*:*:*≥ 14.0.0 < 17.4.0