CVE-2026-46616
Published:June 10, 2026
Updated:June 11, 2026
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 redirect attacks. This issue has been patched in versions 13.14.0 and 17.4.0.
Affected Packages
https://github.com/umbraco/Umbraco-CMS.git (GITHUB):
Affected version(s) >=release-17.3.0 <release-17.4.0Fix Suggestion:
Update to version release-17.4.0https://github.com/umbraco/Umbraco-CMS.git (GITHUB):
Affected version(s) >=release-netcore-alpha001 <release-13.14.0Fix Suggestion:
Update to version release-13.14.0umbraco.cms (NUGET):
Affected version(s) >=9.0.0-rc001 <13.14.0Fix Suggestion:
Update to version 13.14.0umbraco.cms (NUGET):
Affected version(s) >=17.3.0-rc <17.4.0Fix Suggestion:
Update to version 17.4.0Umbraco.Cms (NUGET):
Affected version(s) >=9.0.0-rc001 <13.14.0Fix Suggestion:
Update to version 13.14.0Umbraco.Cms (NUGET):
Affected version(s) >=17.3.0-rc <17.4.0Fix Suggestion:
Update to version 17.4.0Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
URL Redirection to Untrusted Site ('Open Redirect')
EPSS
Base Score:
0.03