{"id":"CVE-2020-21489","aliases":["GHSA-6vf2-mfmr-qqqw"],"url":"https://o3.security/vulnerability/CVE-2020-21489","summary":"Liufee CMS File Upload vulnerability","details":"File Upload vulnerability in Liufee CMS, AKA Feehicms v.2.0.8 allows a remote attacker to execute arbitrary code via the `/admin/index.php?r=admin-user%2Fupdate-self` component.","published":"2023-06-20T15:15:11.470Z","modified":"2026-08-07T15:14:19.530053Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Packagist","name":"feehi/cms","fixedVersion":"2.0.8.1"}],"fix":{"url":"https://github.com/liufee/cms/commit/ecbfb0ca77874ead5b6e79b96a5e1f94e67475a9","label":"liufee/cms@ecbfb0c"},"references":[{"type":"FIX","url":"https://github.com/liufee/cms/issues/46"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-21489"},{"type":"WEB","url":"https://github.com/liufee/cms/commit/ecbfb0ca77874ead5b6e79b96a5e1f94e67475a9"},{"type":"PACKAGE","url":"https://github.com/liufee/cms"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T15:14:19.530053Z"}}