Description
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.
References (3)
Core 3
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-2qjj-h6wp-c7h7
X_Refsource_Misc x_refsource_misc
https://github.com/umbraco/Umbraco-CMS/pull/22561
X_Refsource_Misc x_refsource_misc
https://github.com/umbraco/Umbraco-CMS/pull/22565
Scores
CVSS v3
5.4
EPSS
0.0018
EPSS Percentile
7.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-601
Status
published
Products (5)
nuget/Umbraco.Cms
0 - 13.14.0NuGet
nuget/Umbraco.Cms
17.3.0-rc - 17.4.0NuGet
umbraco/Umbraco-CMS
< 13.14.0
umbraco/Umbraco-CMS
>= 17.3.0-rc, < 17.4.0
umbraco/umbraco_cms
< 13.14.0
Published
Jun 10, 2026
Tracked Since
Jun 10, 2026