{"id":"BIT-moodle-2021-20185","details":"It was found in Moodle before version 3.10.1, 3.9.4, 3.8.7 and 3.5.16 that messaging did not impose a character limit when sending messages, which could result in client-side (browser) denial of service for users receiving very large messages.","aliases":["CVE-2021-20185","GHSA-c3j6-33r4-89q3"],"modified":"2026-09-08T08:47:31.328129848Z","published":"2024-03-06T11:11:15.258Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*","cpe:2.3:a:moodle:moodle:3.10.0:*:*:*:*:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://moodle.org/mod/forum/discuss.php?d=417168"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20185"}],"affected":[{"package":{"name":"moodle","ecosystem":"Bitnami","purl":"pkg:bitnami/moodle"},"ranges":[{"type":"SEMVER","events":[{"introduced":"3.5.0"},{"fixed":"3.5.16"},{"introduced":"3.8.0"},{"fixed":"3.8.7"},{"introduced":"3.9.0"},{"fixed":"3.9.4"},{"introduced":"3.10.0"},{"fixed":"3.10.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/moodle/BIT-moodle-2021-20185.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}],"schema_version":"1.9.0"}