{"id":"GHSA-c3j6-33r4-89q3","aliases":["BIT-moodle-2021-20185","CVE-2021-20185"],"title":"Moodle Client side denial of service via personal message","description":"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.","severity":"medium","score":5.3,"published":"2022-05-24T17:40:31.000Z","modified":"2024-04-24T00:11:40.187Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"moodle/moodle","ranges":[{"events":[{"introduced":"3.5"},{"fixed":"3.5.16"}],"type":"ECOSYSTEM"}],"versions":["v3.5.0","v3.5.0-beta","v3.5.0-rc1","v3.5.1","v3.5.10","v3.5.11","v3.5.12","v3.5.13","v3.5.14","v3.5.15","v3.5.2","v3.5.3","v3.5.4","v3.5.5","v3.5.6","v3.5.7","v3.5.8","v3.5.9"],"fixed":["3.5.16"]},{"ecosystem":"Packagist","name":"moodle/moodle","ranges":[{"events":[{"introduced":"3.8"},{"fixed":"3.8.7"}],"type":"ECOSYSTEM"}],"versions":["v3.8.0","v3.8.0-beta","v3.8.0-rc1","v3.8.1","v3.8.2","v3.8.3","v3.8.4","v3.8.5","v3.8.6"],"fixed":["3.8.7"]},{"ecosystem":"Packagist","name":"moodle/moodle","ranges":[{"events":[{"introduced":"3.9"},{"fixed":"3.9.4"}],"type":"ECOSYSTEM"}],"versions":["v3.9.0","v3.9.0-beta","v3.9.0-rc1","v3.9.0-rc2","v3.9.0-rc3","v3.9.1","v3.9.2","v3.9.3"],"fixed":["3.9.4"]},{"ecosystem":"Packagist","name":"moodle/moodle","ranges":[{"events":[{"introduced":"3.10"},{"fixed":"3.10.1"}],"type":"ECOSYSTEM"}],"versions":["v3.10.0","v3.10.0-beta","v3.10.0-rc1","v3.10.0-rc2"],"fixed":["3.10.1"]}],"references":["https://nvd.nist.gov/vuln/detail/CVE-2021-20185","https://github.com/moodle/moodle","https://moodle.org/mod/forum/discuss.php?d=417168"],"sources":[{"name":"OSV","id":"GHSA-c3j6-33r4-89q3","modified":"2024-04-24T00:11:40.187981Z","url":"https://osv.dev/vulnerability/GHSA-c3j6-33r4-89q3"}],"assessments":[{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3}]}