{"id":"CVE-2019-20859","details":"An issue was discovered in Mattermost Server before 5.15.0. Login access control can be bypassed via crafted input.","modified":"2026-03-02T08:05:53.232298Z","published":"2020-06-19T15:15:10.680Z","references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost-server","events":[{"introduced":"0"},{"fixed":"e1b0373e5e3283449f0e40a4b6c59f083da2f16e"},{"introduced":"24f11a12758fe75ce06269be7f9fb7bb790aec43"},{"fixed":"f1414dd14a5d282102a9261ec24c2e6b6a83ffe1"},{"introduced":"7e5fda43bda67cd061e527b64046f241c2d6cc32"},{"fixed":"3ff8ae8111f37a601af0a17af95feadc23a8f7ea"}]}],"versions":["v5.7.0","v5.7.0-rc6","v5.7.1","v5.7.1-rc1","v5.7.2","v5.7.2-rc1","v5.8.0","v5.8.0-rc4","v5.8.1-rc1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-20859.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}