{"id":"CVE-2021-21020","aliases":["BIT-magento-2021-21020","EUVD-2022-2001","GHSA-2j6v-829g-885q"],"status":"published","title":"Magento Commerce Improper Access Control Vulnerability","description":"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.","severity":{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.02354,"percentile":0.83971,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-284"],"published":"2021-02-11T19:29:31Z","modified":"2026-10-24T10:30:50Z","fixes":[{"ecosystem":"Packagist","package":"magento/community-edition","fixed_in":["2.3.6","2.4.1-p1"],"sources":["ghsa","osv"]},{"ecosystem":"Bitnami","package":"magento","fixed_in":["2.3.6","2.4.1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"magento/community-edition","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.6"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"magento/community-edition","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.4.1-p1"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"magento/project-community-edition","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.0.2"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"magento","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.3.6"},{"introduced":"2.4.0"},{"fixed":"2.4.1"}]}]},{"source":"osv","ecosystem":"Packagist","package":"magento/community-edition","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.6"}]}],"versions":["0.1.0-alpha100","0.1.0-alpha101","0.1.0-alpha102","0.1.0-alpha103","0.1.0-alpha104","0.1.0-alpha105","0.1.0-alpha106","0.1.0-alpha107","0.1.0-alpha108","0.1.0-alpha89","0.1.0-alpha90","0.1.0-alpha91","0.1.0-alpha92","0.1.0-alpha93","0.1.0-alpha94","0.1.0-alpha95","0.1.0-alpha96","0.1.0-alpha97","0.1.0-alpha98","0.1.0-alpha99","0.42.0-beta1","0.42.0-beta10","0.42.0-beta11","0.42.0-beta2","0.42.0-beta3","0.42.0-beta4","0.42.0-beta5","0.42.0-beta6","0.42.0-beta7","0.42.0-beta8","0.42.0-beta9","0.74.0-beta1","0.74.0-beta10","0.74.0-beta11","0.74.0-beta12","0.74.0-beta13","0.74.0-beta14","0.74.0-beta15","0.74.0-beta16","0.74.0-beta2","0.74.0-beta3","0.74.0-beta4","0.74.0-beta5","0.74.0-beta6","0.74.0-beta7","0.74.0-beta8","0.74.0-beta9","1.0.0-beta","1.0.0-beta2","1.0.0-beta3","1.0.0-beta4","1.0.0-beta5","1.0.0-beta6","2.0.0","2.0.0-rc","2.0.0-rc2","2.0.1","2.0.10","2.0.11","2.0.12","2.0.13","2.0.14","2.0.15","2.0.16","2.0.17","2.0.18","2.0.2","2.0.3","2.0.4","2.0.5","2.0.6","2.0.7","2.0.8","2.0.9","2.1.0","2.1.0-rc1","2.1.0-rc2","2.1.0-rc3","2.1.1","2.1.10","2.1.11","2.1.12","2.1.13","2.1.14","2.1.15","2.1.16","2.1.17","2.1.18","2.1.2","2.1.3","2.1.4","2.1.5","2.1.6","2.1.7","2.1.8","2.1.9","2.2.0","2.2.1","2.2.10","2.2.11","2.2.2","2.2.3","2.2.4","2.2.5","2.2.6","2.2.7","2.2.8","2.2.9","2.3.0","2.3.1","2.3.2","2.3.2-p2","2.3.3","2.3.3-p1","2.3.4","2.3.4-p2","2.3.5","2.3.5-p1","2.3.5-p2"]},{"source":"osv","ecosystem":"Packagist","package":"magento/community-edition","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.4.1-p1"}]}],"versions":["2.4.0","2.4.0-p1","2.4.1"]},{"source":"osv","ecosystem":"Packagist","package":"magento/project-community-edition","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.0.2"}]}],"versions":["0.1.0-alpha100","0.1.0-alpha101","0.1.0-alpha102","0.1.0-alpha103","0.1.0-alpha104","0.1.0-alpha105","0.1.0-alpha106","0.1.0-alpha107","0.1.0-alpha108","0.1.0-alpha89","0.1.0-alpha90","0.1.0-alpha91","0.1.0-alpha92","0.1.0-alpha93","0.1.0-alpha94","0.1.0-alpha95","0.1.0-alpha96","0.1.0-alpha97","0.1.0-alpha98","0.1.0-alpha99","0.42.0-beta1","0.42.0-beta10","0.42.0-beta11","0.42.0-beta2","0.42.0-beta3","0.42.0-beta4","0.42.0-beta5","0.42.0-beta6","0.42.0-beta7","0.42.0-beta8","0.42.0-beta9","0.74.0-beta1","0.74.0-beta10","0.74.0-beta11","0.74.0-beta12","0.74.0-beta13","0.74.0-beta14","0.74.0-beta15","0.74.0-beta16","0.74.0-beta2","0.74.0-beta3","0.74.0-beta4","0.74.0-beta5","0.74.0-beta6","0.74.0-beta7","0.74.0-beta8","0.74.0-beta9","1.0.0-beta","2.0.0","2.0.0-rc","2.0.0-rc2","2.0.1","2.0.2"]}],"products":[{"vendor":"adobe","product":"magento commerce"},{"vendor":"magento","product":"magento"}],"references":[{"url":"https://helpx.adobe.com/security/products/magento/apsb21-08.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21020","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-2j6v-829g-885q"},{"url":"https://github.com/magento/magento2","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-21020","title":"Magento Commerce Improper Access Control Vulnerability","description":"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.","status":"published","published":"2021-02-11T19:29:31.778Z","modified":"2024-09-16T23:37:01.379Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:33:00.137099Z"}],"euvd":[{"id":"EUVD-2022-2001","description":"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.","status":"published","published":"2021-02-11T19:29:31Z","modified":"2024-09-16T23:37:01Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-03T00:54:48.722382Z"}],"ghsa":[{"id":"GHSA-2j6v-829g-885q","title":"Magento Improper Access Control","description":"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.","status":"published","published":"2022-05-24T17:41:55Z","modified":"2025-02-10T20:43:02Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:38:29.866763Z"}],"nvd":[{"id":"CVE-2021-21020","description":"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.","status":"published","published":"2021-02-11T20:15:14.187Z","modified":"2026-06-17T03:34:40.55Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"secondary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:06:50.031227Z"}],"osv":[{"id":"CVE-2021-21020","description":"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.","status":"published","published":"2021-02-11T20:15:14.187Z","modified":"2026-10-24T10:30:50.167792006Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:18.004149Z"},{"id":"GHSA-2j6v-829g-885q","title":"Magento Improper Access Control","description":"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.","status":"published","published":"2022-05-24T17:41:55Z","modified":"2025-02-10T21:02:42.702584Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T15:46:34.338541Z"},{"id":"BIT-magento-2021-21020","title":"Magento Commerce Improper Access Control Vulnerability","description":"Magento versions 2.4.1 (and earlier), 2.4.0 (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.","status":"published","published":"2024-03-06T11:01:10.083Z","modified":"2026-09-08T08:48:09.430034643Z","updated_at":"2026-11-02T15:28:32.645004Z"}]}}