{"id":"CVE-2021-28661","aliases":["BIT-silverstripe-2021-28661","GHSA-r7rh-g777-g5gx"],"url":"https://o3.security/vulnerability/CVE-2021-28661","summary":"SilverStripe GraphQL Server permission checker not inherited by query subclass.","details":"Default SilverStripe GraphQL Server (aka silverstripe/graphql) 3.x through 3.4.1 permission checker not inherited by query subclass.","published":"2021-10-07T15:15:10.510Z","modified":"2026-08-07T16:49:50.837304Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Packagist","name":"silverstripe/graphql","fixedVersion":"3.5.2"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/silverstripe/silverstripe-graphql/releases"},{"type":"EVIDENCE","url":"https://www.silverstripe.org/download/security-releases/CVE-2021-28661"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T16:49:50.837304Z"}}