{"id":"CVE-2019-20843","details":"An issue was discovered in Mattermost Server before 5.18.0, 5.17.2, 5.16.4, 5.15.4, and 5.9.7. There are weak permissions for configuration files.","modified":"2026-08-27T08:15:31.593668Z","published":"2020-06-19T14:15:10.433Z","references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost","events":[{"introduced":"0"},{"fixed":"1c81f4f5f7d6212d93a5bb8fc95c43252d22fc59"},{"introduced":"f4f7fd0829d74fcd5e290fd1ba76845af18e553e"},{"fixed":"0e3514cb61a6ce17d8e5edfad2c4793ab1cdec8a"},{"introduced":"6597fdb40134965e26f715854dc85f5e6cfaa6df"},{"fixed":"e16012435f82afafdfdd7963e95d86c9e8538322"},{"introduced":"c81e4f87c20a717b1dc52b2b77780fa789e19148"},{"fixed":"ca0518420b931db0923c97ec17e05e150a729a64"},{"introduced":"20f13aa07eb468e29bc0dd1a52941cb7c4532ccb"},{"last_affected":"cd38d63bf448ae791f252c3704a705e94b26959f"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"5.9.7"},{"introduced":"5.15.0"},{"fixed":"5.15.4"},{"introduced":"5.16.0"},{"fixed":"5.16.4"},{"introduced":"5.17.0"},{"fixed":"5.17.2"},{"introduced":"5.18.0-rc1"},{"last_affected":"5.18.0-rc1"},{"introduced":"5.18.0-rc2"},{"last_affected":"5.18.0-rc2"},{"introduced":"5.18.0-rc3"},{"last_affected":"5.18.0-rc3"},{"introduced":"5.18.0-rc4"},{"last_affected":"5.18.0-rc4"}],"source":["CPE_RANGE","CPE_STRING"],"cpe":["cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*","cpe:2.3:a:mattermost:mattermost_server:5.18.0:rc1:*:*:*:*:*:*","cpe:2.3:a:mattermost:mattermost_server:5.18.0:rc2:*:*:*:*:*:*","cpe:2.3:a:mattermost:mattermost_server:5.18.0:rc3:*:*:*:*:*:*","cpe:2.3:a:mattermost:mattermost_server:5.18.0:rc4:*:*:*:*:*:*"]}}],"versions":["5.18.0-rc1","5.18.0-rc2","5.18.0-rc3","v5.18.0-rc4","v5.18.0-rc3","v5.18.0","v5.18.0-rc2","v5.15.3-rc1","v5.15.3","v5.15.2-rc2","v5.15.2-rc1","v5.15.2","v5.18.0-rc1","v5.9.6-rc1","v5.9.6","v5.16.3-rc1","v5.16.3","v5.17.1-rc1","v5.17.1","v5.17.0-rc4","v5.17.0-rc3","v5.17.0","v5.16.2-rc1","v5.16.2","v5.16.1-rc2","v5.16.1-rc1","v5.16.1","v5.9.5-rc1","v5.9.5","v5.15.1","v5.16.0-rc3","v5.16.0","v5.15.1-rc1","v5.15.0-rc4","v5.15.0","v5.9.4-rc1","v5.9.4","v5.9.3-rc1","v5.9.3","v5.9.2-rc1","v5.9.2","v5.9.1-rc1","v5.9.1","v5.9.0-rc4","v5.9.0","v5.9.0-rc3","v5.9.0-rc2","v5.9.0-rc1","v5.8.0-rc4","v5.8.0","v5.8.0-rc3","v5.8.0-rc2","v5.8.0-rc1","v5.2.0-rc2","v5.2.0-rc1","v5.1.0-rc1","v5.0.0-rc1","v4.10.0-rc1","v4.9.0-rc1","v4.8.0-rc1","v4.7.0-rc1","v4.6.0-rc2","v4.6.0-rc1","v4.5.0-rc1","v4.4.0-rc1","v4.3.0-rc1","v4.2.0-rc1","v0.5.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-20843.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}