{"id":"CVE-2017-18914","details":"An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. An external link can occur on an error page even if it is not on an allowlist.","modified":"2026-04-11T18:28:53.699039Z","published":"2020-06-19T20:15:12.367Z","references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost","events":[{"introduced":"0"},{"fixed":"584146b9b9b5d44359475f1b815b2306e130bbf2"},{"introduced":"8568afe5b4fb4d26b14fbc0d21f088eaa490b314"},{"fixed":"93e3981de93ce829fac9306ca8ede376b3c3fc14"},{"introduced":"30974533941e73f102505d07badf538cfdbbf3fc"},{"fixed":"dd1db760e378d2df7a52976e812f77f54f85c2c0"}],"database_specific":{"source":"CPE_FIELD","cpe":"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"3.6.7"},{"introduced":"3.7.0"},{"fixed":"3.7.5"},{"introduced":"3.8.0"},{"fixed":"3.8.2"}]}}],"versions":["v0.5.0","v3.6.0","v3.6.1","v3.6.2","v3.6.3","v3.6.4","v3.6.5","v3.6.6","v3.6.7-rc1","v3.7.0","v3.7.1","v3.7.2","v3.7.3","v3.7.4","v3.7.5-rc1","v3.8.0","v3.8.1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-18914.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:L/A:N"}]}