{"id":"GHSA-2qjj-h6wp-c7h7","summary":"Umbraco.Cms: Open Redirect Vulnerability in Surface Controllers","details":"### Impact\nSome 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.\n\n### Patches\nThe issue is resolved in versions 17.4.0 and 13.14.0.\n\n### Workarounds\nIf users cannot upgrade immediately, they can mitigate the issue in their own site by ensuring every Razor form that posts to `UmbLoginStatusController`, `UmbProfileController` or `UmbRegisterController` passes a concrete, trusted `RedirectUrl` into `Html.BeginUmbracoForm's` route values. \n\nFor example:\n\n```cshtml\n  @using (Html.BeginUmbracoForm\u003cUmbLoginStatusController\u003e(\n      \"HandleLogout\",\n      new { RedirectUrl = Model.Url() }))\n  {\n      \u003cbutton type=\"submit\"\u003eLog out\u003c/button\u003e\n  }\n```\n\n### Resources\n\nhttps://github.com/umbraco/Umbraco-CMS/pull/22565\nhttps://github.com/umbraco/Umbraco-CMS/pull/22561","aliases":["CVE-2026-46616"],"modified":"2026-06-10T18:46:57.007531268Z","published":"2026-05-21T19:58:06Z","database_specific":{"github_reviewed_at":"2026-05-21T19:58:06Z","nvd_published_at":"2026-06-10T17:16:37Z","cwe_ids":["CWE-601"],"severity":"MODERATE","github_reviewed":true},"references":[{"type":"WEB","url":"https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-2qjj-h6wp-c7h7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46616"},{"type":"WEB","url":"https://github.com/umbraco/Umbraco-CMS/pull/22561"},{"type":"WEB","url":"https://github.com/umbraco/Umbraco-CMS/pull/22565"},{"type":"PACKAGE","url":"https://github.com/umbraco/Umbraco-CMS"}],"affected":[{"package":{"name":"Umbraco.Cms","ecosystem":"NuGet","purl":"pkg:nuget/Umbraco.Cms"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"13.14.0"}]}],"versions":["10.0.0","10.0.0-rc1","10.0.0-rc2","10.0.0-rc3","10.0.0-rc4","10.0.0-rc5","10.0.1","10.1.0","10.1.0-rc","10.1.0-rc2","10.1.1","10.2.0","10.2.0-rc","10.2.1","10.3.0","10.3.0-rc","10.3.1","10.3.2","10.4.0","10.4.0-rc","10.4.1","10.4.2","10.5.0","10.5.0-rc","10.5.1","10.6.0","10.6.0-rc","10.6.1","10.7.0","10.7.0-rc","10.8.0","10.8.0-rc","10.8.1","10.8.10","10.8.11","10.8.2","10.8.3","10.8.4","10.8.5","10.8.6","10.8.7","10.8.8","10.8.9","11.0.0","11.0.0-rc1","11.0.0-rc2","11.0.0-rc3","11.0.0-rc4","11.0.0-rc5","11.0.0-rc6","11.1.0","11.1.0-rc","11.2.0","11.2.0-rc","11.2.1","11.2.2","11.3.0","11.3.0-rc","11.3.1","11.4.0","11.4.0-rc","11.4.1","11.4.2","11.5.0","11.5.0-rc","12.0.0","12.0.0-rc1","12.0.0-rc2","12.0.0-rc3","12.0.0-rc4","12.0.0-rc5","12.0.1","12.1.0","12.1.0-rc","12.1.1","12.1.2","12.2.0","12.2.0-rc","12.3.0","12.3.0-rc","12.3.1","12.3.10","12.3.2","12.3.3","12.3.4","12.3.5","12.3.6","12.3.7","12.3.8","12.3.9","13.0.0","13.0.0-rc1","13.0.0-rc2","13.0.0-rc3","13.0.0-rc4","13.0.0-rc5","13.0.1","13.0.2","13.0.3","13.1.0","13.1.0-rc","13.1.1","13.10.0","13.10.0-rc","13.10.1","13.11.0","13.11.0-rc","13.11.0-rc2","13.12.0","13.12.0-rc","13.12.0-rc2","13.12.1","13.13.0","13.13.0-rc","13.13.0-rc2","13.13.0-rc3","13.13.1","13.14.0-rc","13.14.0-rc2","13.14.0-rc3","13.2.0","13.2.0-rc","13.2.1","13.2.2","13.3.0","13.3.0-rc","13.3.1","13.3.2","13.4.0","13.4.0-rc","13.4.0-rc2","13.4.1","13.5.0","13.5.0-rc","13.5.1","13.5.2","13.5.3","13.6.0","13.6.0-rc","13.6.0-rc2","13.7.0","13.7.0-rc","13.7.1","13.7.2","13.8.0","13.8.0-rc","13.8.1","13.9.0","13.9.0-rc","13.9.1","13.9.2","13.9.3","9.0.0","9.0.0-rc001","9.0.0-rc002","9.0.0-rc003","9.0.0-rc004","9.0.1","9.1.0","9.1.0-rc","9.1.1","9.1.2","9.2.0","9.2.0-rc","9.3.0","9.3.0-rc","9.3.1","9.4.0","9.4.0-rc","9.4.1","9.4.2","9.4.3","9.5.0","9.5.0-rc","9.5.0-rc2","9.5.0-rc3","9.5.1","9.5.2","9.5.3","9.5.4"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-2qjj-h6wp-c7h7/GHSA-2qjj-h6wp-c7h7.json"}},{"package":{"name":"Umbraco.Cms","ecosystem":"NuGet","purl":"pkg:nuget/Umbraco.Cms"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"17.3.0-rc"},{"fixed":"17.4.0"}]}],"versions":["17.3.0","17.3.0-rc","17.3.0-rc2","17.3.0-rc3","17.3.1","17.3.2","17.3.3","17.3.4","17.3.5","17.4.0-rc","17.4.0-rc2","17.4.0-rc3"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-2qjj-h6wp-c7h7/GHSA-2qjj-h6wp-c7h7.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"}]}