{"action":"Upgrade Umbraco.Cms to 16.5.1 (16.x) or 17.2.2 (17.x) or later.","affected":[{"fixed":"16.5.1","introduced":"14.0.0"},{"fixed":"17.2.2","introduced":"17.0.0"}],"component":"Umbraco.Cms","cve_ids":["CVE-2026-31832"],"ecosystem":"NuGet","epss":0.00208,"exploited":false,"fixed_versions":["16.5.1","17.2.2"],"ghsa_id":"GHSA-fpvf-fvp5-996r","id":"tcs_01M5N8MY60W50C2JJN3R66J8J6","modified_at":"2026-03-13T05:56:21.081903Z","published_at":"2026-03-11T00:24:53Z","references":["https://osv.dev/vulnerability/GHSA-fpvf-fvp5-996r","https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-fpvf-fvp5-996r","https://nvd.nist.gov/vuln/detail/CVE-2026-31832","https://github.com/umbraco/Umbraco-CMS"],"severity":{"label":"medium","score":5.4},"sources":[{"source":"osv","source_id":"GHSA-fpvf-fvp5-996r","url":"https://osv.dev/vulnerability/GHSA-fpvf-fvp5-996r"}],"summary":"Umbraco Backoffice API Allows Unauthorized Modification of Domain Data"}