{"id":"CVE-2023-28336","aliases":["BIT-moodle-2023-28336","GHSA-prjm-2fj2-787f"],"url":"https://o3.security/vulnerability/CVE-2023-28336","summary":"Moodle: teacher can access names of users they do not have permission to access","details":"Insufficient filtering of grade report history made it possible for teachers to access the names of users they could not otherwise access.","published":"2023-03-23T00:00:00Z","modified":"2026-10-28T02:31:05.815171120Z","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":0,"affectedPackages":[{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"4.1.2"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"4.0.7"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"3.11.13"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"3.9.20"}],"fix":{"url":"https://github.com/moodle/moodle/commit/a931a7f8cec3657827268837b27962a13817ca2b","label":"moodle/moodle@a931a7f"},"references":[{"type":"WEB","url":"https://git.moodle.org"},{"type":"WEB","url":"https://moodle.org/mod/forum/discuss.php?d=445068"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28336.json"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QZN34VSF4HTCW3C3ZP2OZYSLYUKADPF/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28336"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2179426"},{"type":"WEB","url":"https://github.com/moodle/moodle/commit/a931a7f8cec3657827268837b27962a13817ca2b"},{"type":"WEB","url":"https://git.moodle.org/gw?p=moodle.git;a=commit;h=a931a7f8cec3657827268837b27962a13817ca2b"},{"type":"PACKAGE","url":"https://github.com/moodle/moodle"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QZN34VSF4HTCW3C3ZP2OZYSLYUKADPF"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3QZN34VSF4HTCW3C3ZP2OZYSLYUKADPF"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:31:05.815171120Z"}}