{"id":"GHSA-c9q3-r4rv-mjm7","summary":"Fix for arbitrary command execution in custom layout update through blocks","details":"### Impact\nCustom Layout enabled admin users to execute arbitrary commands via block methods.\n\n","aliases":["CVE-2021-39217"],"modified":"2026-07-08T06:29:36.452088692Z","published":"2023-01-27T00:54:46Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2023-01-27T00:54:46Z","nvd_published_at":"2023-01-27T18:15:00Z","cwe_ids":["CWE-77"],"severity":"HIGH"},"references":[{"type":"WEB","url":"https://github.com/OpenMage/magento-lts/security/advisories/GHSA-c9q3-r4rv-mjm7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39217"},{"type":"WEB","url":"https://github.com/OpenMage/magento-lts/commit/289bd4b4f53622138e3e5c2d2cef7502d780086f"},{"type":"PACKAGE","url":"https://github.com/OpenMage/magento-lts"},{"type":"WEB","url":"https://github.com/OpenMage/magento-lts/releases/tag/v19.4.22"},{"type":"WEB","url":"https://github.com/OpenMage/magento-lts/releases/tag/v20.0.19"}],"affected":[{"package":{"name":"openmage/magento-lts","ecosystem":"Packagist","purl":"pkg:composer/openmage/magento-lts"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"19.4.22"}]}],"versions":["1.9.1.1","1.9.2.0","1.9.2.1","1.9.2.2","1.9.2.3","1.9.2.4","1.9.3.0","1.9.3.1","v19.4.0","v19.4.1","v19.4.10","v19.4.11","v19.4.12","v19.4.13","v19.4.14","v19.4.15","v19.4.16","v19.4.17","v19.4.18","v19.4.19","v19.4.2","v19.4.20","v19.4.21","v19.4.3","v19.4.4","v19.4.5","v19.4.6","v19.4.7","v19.4.8","v19.4.9"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/01/GHSA-c9q3-r4rv-mjm7/GHSA-c9q3-r4rv-mjm7.json"}},{"package":{"name":"openmage/magento-lts","ecosystem":"Packagist","purl":"pkg:composer/openmage/magento-lts"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"20.0.0"},{"fixed":"20.0.19"}]}],"versions":["v20.0.0","v20.0.1","v20.0.10","v20.0.11","v20.0.12","v20.0.13","v20.0.14","v20.0.15","v20.0.16","v20.0.17","v20.0.18","v20.0.2","v20.0.3","v20.0.4","v20.0.5","v20.0.6","v20.0.7","v20.0.8"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/01/GHSA-c9q3-r4rv-mjm7/GHSA-c9q3-r4rv-mjm7.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"}]}