{"id":"CVE-2020-9591","aliases":["BIT-magento-2020-9591","GHSA-w7rh-9w5v-rwqj"],"url":"https://o3.security/vulnerability/CVE-2020-9591","summary":"Magento defense-in-depth security mitigation vulnerability","details":"Magento versions 2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier have a defense-in-depth security mitigation vulnerability. Successful exploitation could lead to unauthorized access to admin panel.","published":"2020-06-26T21:15:17.403Z","modified":"2026-09-21T03:45:41.045755005Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"magento/community-edition","fixedVersion":"2.3.4-p2"},{"ecosystem":"Packagist","name":"magento/community-edition","fixedVersion":null},{"ecosystem":"Packagist","name":"magento/core","fixedVersion":"1.9.4.5"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://helpx.adobe.com/security/products/magento/apsb20-22.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-9591"},{"type":"PACKAGE","url":"https://github.com/magento/magento2"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-21T03:45:41.045755005Z"}}