{"id":"CVE-2021-36400","aliases":["BIT-moodle-2021-36400","GHSA-35wf-3wq2-r3hx"],"url":"https://o3.security/vulnerability/CVE-2021-36400","summary":"Moodle has Incorrect Default Permissions","details":"In Moodle, insufficient capability checks made it possible to remove other users' calendar URL subscriptions.","published":"2023-03-06T22:15:09.547Z","modified":"2026-07-09T05:44:34.584407Z","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":"3.11.1"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"3.10.5"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"3.9.8"}],"fix":null,"references":[{"type":"FIX","url":"https://moodle.org/mod/forum/discuss.php?d=424806"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T05:44:34.584407Z"}}