{"id":"CVE-2021-21029","aliases":["BIT-magento-2021-21029","GHSA-jwxh-wj79-ccm6"],"url":"https://o3.security/vulnerability/CVE-2021-21029","summary":"Magento Reflected Cross-site Scripting vulnerability via 'file' parameter","details":"Magento versions 2.4.1 (and earlier), 2.4.0-p1 (and earlier) and 2.3.6 (and earlier) are affected by a Reflected Cross-site Scripting vulnerability via 'file' parameter. Successful exploitation could lead to arbitrary JavaScript execution in the victim's browser. Access to the admin console is required for successful exploitation.","published":"2021-02-11T20:15:14.763Z","modified":"2026-07-09T00:12:26.235541Z","cvss":{"score":4.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"magento/community-edition","fixedVersion":"2.3.6-p1"},{"ecosystem":"Packagist","name":"magento/community-edition","fixedVersion":"2.4.2"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://helpx.adobe.com/security/products/magento/apsb21-08.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T00:12:26.235541Z"}}