{"id":"CVE-2020-9471","aliases":["GHSA-h68c-4jh3-cp9j"],"url":"https://o3.security/vulnerability/CVE-2020-9471","summary":"Umbraco CMS Authenticated File Upload","details":"Umbraco Cloud 8.5.3 allows an authenticated file upload (and consequently Remote Code Execution) via the Install Packages functionality.","published":"2020-03-16T20:15:12.923Z","modified":"2026-07-08T17:57:12.272023Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":3,"affectedPackages":[{"ecosystem":"NuGet","name":"UmbracoCMS.Core","fixedVersion":null}],"fix":null,"references":[{"type":"EVIDENCE","url":"https://gitlab.com/eLeN3Re/cve-2020-9471"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T17:57:12.272023Z"}}