{"id":"CVE-2021-20282","aliases":["BIT-moodle-2021-20282","GHSA-grj4-g57c-9xmv"],"url":"https://o3.security/vulnerability/CVE-2021-20282","summary":"Moodle Bypass email verification secret when confirming account registration","details":"When creating a user account, it was possible to verify the account without having access to the verification email link/secret in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.","published":"2021-03-15T22:15:13.327Z","modified":"2026-07-08T06:00:31.817769005Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"3.5.17"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"3.8.8"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"3.9.5"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"3.10.2"}],"fix":null,"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AFSNJ7XHVTC52RSRX2GBQFF3VEEAY2MS/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UFH5DDMU5TZ3JT4Q52WMRAHACA5MHIMT/"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1939046"},{"type":"FIX","url":"https://moodle.org/mod/forum/discuss.php?d=419653"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20282"},{"type":"PACKAGE","url":"https://github.com/moodle/moodle"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AFSNJ7XHVTC52RSRX2GBQFF3VEEAY2MS"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UFH5DDMU5TZ3JT4Q52WMRAHACA5MHIMT"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T06:00:31.817769005Z"}}