{"id":"UBUNTU-CVE-2021-20281","details":"It was possible for some users without permission to view other users' full names to do so via the online users block in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.","modified":"2026-09-22T22:52:00.562173657Z","published":"2021-03-15T22:15:00Z","upstream":["CVE-2021-20281"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-20281"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1939041"},{"type":"REPORT","url":"https://moodle.org/mod/forum/discuss.php?d=419652"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-20281"}],"affected":[{"package":{"name":"moodle","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/moodle?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.7.9+dfsg-1","2.7.10+dfsg-1","2.7.11+dfsg-1","2.7.11+dfsg-2","2.7.12+dfsg-1","3.0.3+dfsg-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"moodle","binary_version":"3.0.3+dfsg-0ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-20281.json"}},{"package":{"name":"moodle","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/moodle?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.3+dfsg-0ubuntu1","3.0.3+dfsg-0ubuntu1+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"moodle","binary_version":"3.0.3+dfsg-0ubuntu1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-20281.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"type":"Ubuntu","score":"low"}]}