{"id":"CVE-2020-14448","details":"An issue was discovered in Mattermost Server before 5.23.0. Automatic direct message replies allow attackers to cause a denial of service (infinite loop), aka MMSA-2020-0020.","aliases":["BIT-mattermost-2020-14448"],"modified":"2026-03-14T10:06:51.437075Z","published":"2020-06-19T14:15:11.260Z","references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost-server","events":[{"introduced":"0"},{"fixed":"ed1576d007a09b07574b18784b9eabb3d8c9db53"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"5.23.0"}]}}],"versions":["v0.5.0","v0.6.0","v1.0.0","v1.1.0","v1.1.1","v1.2.1","v1.3.0","v1.4.0","v2.0.0","v3.0.0","v3.0.1","v3.0.2","v3.0.3","v3.1.0","v3.2.0","v3.3.0","v3.4.0","v3.5.0","v3.5.1","v3.6.0","v3.6.1","v3.7.0","v3.7.1","v3.7.2","v3.7.3","v3.8.0","v4.0.0","v4.0.1","v4.1.0","v4.10.0","v4.10.0-rc1","v4.10.0-rc2","v4.10.0-rc3","v4.10.0-rc4","v4.10.0-rc5","v4.2.0-rc1","v4.3.0","v4.3.0-rc1","v4.3.0-rc2","v4.3.0-rc3","v4.3.0-rc4","v4.4.0","v4.4.0-rc1","v4.4.0-rc2","v4.4.0-rc3","v4.4.0-rc4","v4.4.0-rc5","v4.5.0","v4.5.0-rc1","v4.5.0-rc2","v4.5.0-rc3","v4.5.0-rc4","v4.5.1","v4.5.1-rc1","v4.5.2","v4.5.2-rc1","v4.6.0","v4.6.0-rc1","v4.6.0-rc2","v4.6.0-rc3","v4.6.0-rc4","v4.6.0-rc5","v4.6.0-rc6","v4.7.0","v4.7.0-rc1","v4.7.0-rc2","v4.7.0-rc3","v4.7.0-rc4","v4.7.1","v4.7.1-rc1","v4.7.2","v4.7.2-rc1","v4.7.2-rc2","v4.7.2-rc3","v4.7.3","v4.7.3-rc1","v4.8.0","v4.8.0-rc1","v4.8.0-rc2","v4.8.0-rc3","v4.8.0-rc4","v4.8.0-rc5","v4.8.0-rc6","v4.9.0","v4.9.0-rc1","v4.9.0-rc2","v4.9.0-rc3","v4.9.0-rc4","v4.9.0-rc5","v4.9.0-rc6","v5.0.0","v5.0.0-rc1","v5.0.0-rc2","v5.0.0-rc3","v5.0.0-rc4","v5.0.0-rc5","v5.0.0-rc6","v5.0.0-rc7","v5.0.1","v5.0.1-rc1","v5.1.0","v5.1.0-rc1","v5.1.0-rc2","v5.1.0-rc3","v5.1.0-rc4","v5.2.0","v5.2.0-rc1","v5.2.0-rc2","v5.2.0-rc3","v5.2.0-rc4","v5.2.0-rc5","v5.2.0-rc6","v5.2.1","v5.2.1-rc1","v5.22.0-rc1","v5.22.0-rc2","v5.22.0-rc3","v5.23-rc1","v5.23.0-rc1","v5.23.0-rc2","v5.23.0-rc3","v5.3.0","v5.3.0-rc1","v5.3.0-rc2","v5.3.0-rc3","v5.3.0-rc4","v5.3.0-rc5","v5.3.1","v5.3.1-rc1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14448.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}