{"id":"CVE-2023-5551","aliases":["BIT-moodle-2023-5551","GHSA-jr83-8x65-xcr5"],"url":"https://o3.security/vulnerability/CVE-2023-5551","summary":"Moodle: forum summary report shows students from other groups when in separate groups mode","details":"Separate Groups mode restrictions were not honoured in the forum summary report, which would display users from other groups.","published":"2023-11-09T19:39:11.940Z","modified":"2026-10-28T02:31:03.499527867Z","cvss":{"score":3.3,"severity":"LOW","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"4.3.0-rc2"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"4.2.3"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"4.1.6"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"4.0.11"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"3.11.17"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"3.9.24"}],"fix":{"url":"https://github.com/moodle/moodle/commit/2bb6c551cf2e7be29857db35388911b8179394b0","label":"moodle/moodle@2bb6c55"},"references":[{"type":"WEB","url":"http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-79310"},{"type":"WEB","url":"https://git.moodle.org"},{"type":"WEB","url":"https://moodle.org/mod/forum/discuss.php?d=451592"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5551.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-5551"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2243453"},{"type":"WEB","url":"https://github.com/moodle/moodle/commit/2bb6c551cf2e7be29857db35388911b8179394b0"},{"type":"WEB","url":"https://github.com/moodle/moodle/commit/6de45d2c9f7dd7b24210ab0310c296366a82986a"},{"type":"WEB","url":"https://github.com/moodle/moodle/commit/b91feb0b2328cdda2561d68b8dfe2a129190bc85"},{"type":"PACKAGE","url":"https://github.com/moodle/moodle"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:31:03.499527867Z"}}