{"id":"CVE-2017-18916","aliases":["GHSA-x33g-375j-jhf7","GO-2026-4467"],"url":"https://o3.security/vulnerability/CVE-2017-18916","summary":"Mattermost Server has Improper Authorization for Integration Requests","details":"An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. API endpoint access control does not honor an integration permission restriction.","published":"2020-06-19T20:15:12.477Z","modified":"2026-07-31T18:31:07.422744628Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},"epss":{"score":0.00769,"percentile":0.52424,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"3.6.7-0.20170420152529-0968e4079e0a"},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"3.7.5"},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"3.8.2"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates/"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-31T18:31:07.422744628Z"}}