{"id":"CVE-2021-20751","aliases":["GHSA-r6qq-qc9m-98w2"],"url":"https://o3.security/vulnerability/CVE-2021-20751","summary":"EC-CUBE Cross-site scripting vulnerability","details":"Cross-site scripting vulnerability in EC-CUBE EC-CUBE 4.0.0 to 4.0.5-p1 (EC-CUBE 4 series) allows a remote attacker to inject an arbitrary script by leading an administrator or a user to a specially crafted page and to perform a specific operation.","published":"2021-06-28T01:15:07.603Z","modified":"2026-07-09T00:12:27.553955Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"ec-cube/ec-cube","fixedVersion":"4.0.6"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://jvn.jp/en/jp/JVN95292458/index.html"},{"type":"ADVISORY","url":"https://www.ec-cube.net/info/weakness/weakness.php?id=78"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T00:12:27.553955Z"}}