{"id":"CVE-2020-25630","aliases":["BIT-moodle-2020-25630","GHSA-66xp-28cq-mrf2"],"url":"https://o3.security/vulnerability/CVE-2020-25630","summary":"Moodle Denial of Service ","details":"A vulnerability was found in Moodle where the decompressed size of zip files was not checked against available user quota before unzipping them, which could lead to a denial of service risk. This affects versions 3.9 to 3.9.1, 3.8 to 3.8.4, 3.7 to 3.7.7, 3.5 to 3.5.13 and earlier unsupported versions. Fixed in 3.9.2, 3.8.5, 3.7.8 and 3.5.14.","published":"2020-12-08T01:15:11.820Z","modified":"2026-07-08T23:35:11.370872Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"3.9.2"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"3.8.5"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"3.7.8"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"3.5.14"}],"fix":null,"references":[{"type":"FIX","url":"https://moodle.org/mod/forum/discuss.php?d=410842"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T23:35:11.370872Z"}}