{"id":"CVE-2020-5203","aliases":["GHSA-hpj2-4hfj-g233"],"url":"https://o3.security/vulnerability/CVE-2020-5203","summary":"Fat-Free Framework arbitrary code execution","details":"In Fat-Free Framework 3.7.1, attackers can achieve arbitrary code execution if developers choose to pass user controlled input (e.g., $_REQUEST, $_GET, or $_POST) to the framework's Clear method.","published":"2020-03-11T14:15:14.623Z","modified":"2026-07-08T21:27:05.292446Z","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":{"score":0.02137,"percentile":0.8037,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"bcosca/fatfree","fixedVersion":"3.7.2"}],"fix":{"url":"https://github.com/bcosca/fatfree-core/commit/dae95a0baf3963a9ef87c17cee52f78f77e21829","label":"bcosca/fatfree-core@dae95a0"},"references":[{"type":"ADVISORY","url":"https://github.com/bcosca/fatfree/releases"},{"type":"FIX","url":"https://github.com/bcosca/fatfree-core/commit/dae95a0baf3963a9ef87c17cee52f78f77e21829"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T21:27:05.292446Z"}}