{"action":"Upgrade Umbraco.Cms to 17.4.0 or later.","affected":[{"fixed":"17.4.0","introduced":"14.0.0"}],"component":"Umbraco.Cms","cve_ids":["CVE-2026-46609"],"ecosystem":"NuGet","epss":0.00136,"exploited":false,"fixed_versions":["17.4.0"],"ghsa_id":"GHSA-vr9v-27gg-qgx4","id":"tcs_01M5N92R02XNAWE1YBMERMANXA","modified_at":"2026-06-10T18:46:55.389617633Z","published_at":"2026-05-21T20:43:06Z","references":["https://osv.dev/vulnerability/GHSA-vr9v-27gg-qgx4","https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-vr9v-27gg-qgx4","https://nvd.nist.gov/vuln/detail/CVE-2026-46609","https://github.com/umbraco/Umbraco-CMS"],"severity":{"label":"medium","score":4.6},"sources":[{"source":"osv","source_id":"GHSA-vr9v-27gg-qgx4","url":"https://osv.dev/vulnerability/GHSA-vr9v-27gg-qgx4"}],"summary":"Umbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confirmation dialog"}