CVE-2026-46616: URL Redirection to Untrusted Site

Umbraco is an ASP.NET CMS. Prior to versions 13.14.0 and 17.4.0, some of the Surface Controllers in the CMS provide to support member related operations fail to validate redirect URLs, making Razor templates that derive 'RedirectUrl' from user-controlled query parameters vulnerable to malicious...

Umbraco input validation vulnerability

Umbraco is an open-source content management system CMS written in C by the Danish company Umbraco. Versions of Umbraco before 13.14.0 and 17.4.0 contained a vulnerability related to input validation errors. This vulnerability stemmed from some Surface controllers failing to validate the redirect...

PT-2026-42585

Impact Some of the Surface Controllers in the CMS provide to support member related operations fail to validate redirect URLs, making Razor templates that derive 'RedirectUrl' from user-controlled query parameters vulnerable to malicious redirect attacks. Patches The issue is resolved in versions...