{"action":"Upgrade moodle/moodle to 4.1.21 or later.","affected":[{"fixed":"5.0.3","introduced":"5.0.0-beta"},{"fixed":"4.5.7","introduced":"4.5.0-beta"},{"fixed":"4.4.11","introduced":"4.2.0-beta"},{"fixed":"4.1.21","introduced":"0"}],"component":"moodle/moodle","cve_ids":["CVE-2025-62400"],"ecosystem":"Packagist","epss":0.00269,"exploited":false,"fixed_versions":["5.0.3","4.5.7","4.4.11","4.1.21"],"ghsa_id":"GHSA-422v-w6c5-vq42","id":"tcs_01M5KETDYDT3K8NB0JFNBT895W","modified_at":"2025-11-18T00:27:18.288691Z","published_at":"2025-10-23T12:31:17Z","references":["https://osv.dev/vulnerability/GHSA-422v-w6c5-vq42","https://nvd.nist.gov/vuln/detail/CVE-2025-62400","https://github.com/moodle/moodle/commit/0c70d67059658879a71152ea075c74154a627d05","https://access.redhat.com/security/cve/CVE-2025-62400","https://bugzilla.redhat.com/show_bug.cgi?id=2404433","https://github.com/moodle/moodle","https://moodle.org/mod/forum/discuss.php?d=470389"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"GHSA-422v-w6c5-vq42","url":"https://osv.dev/vulnerability/GHSA-422v-w6c5-vq42"}],"summary":"Moodle exposed the names of hidden groups to users"}