{"id":"CVE-2021-21020","aliases":["BIT-magento-2021-21020","GHSA-2j6v-829g-885q"],"url":"https://o3.security/vulnerability/CVE-2021-21020","summary":"Magento Improper Access Control","details":"Magento versions 2.4.1 (and earlier), 2.4.0-p1 (and earlier) and 2.3.6 (and earlier) are vulnerable to an access control bypass vulnerability in the Login as Customer module. Successful exploitation could lead to unauthorized access to restricted resources.","published":"2021-02-11T20:15:14.187Z","modified":"2026-07-09T00:22:21.870532Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"magento/community-edition","fixedVersion":"2.3.6"},{"ecosystem":"Packagist","name":"magento/community-edition","fixedVersion":"2.4.1-p1"},{"ecosystem":"Packagist","name":"magento/project-community-edition","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://helpx.adobe.com/security/products/magento/apsb21-08.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T00:22:21.870532Z"}}