{"id":"CVE-2017-18908","aliases":["GHSA-34cx-hvm4-vx7j","GO-2026-4476"],"url":"https://o3.security/vulnerability/CVE-2017-18908","summary":"Mattermost Server password reset email requests can be sent to attacker-provided email addresses","details":"An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. A password-reset request was sometime sent to an attacker-provided e-mail address.","published":"2020-06-19T20:15:12.257Z","modified":"2026-07-31T18:31:33.947961947Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"3.9.1-rc1"},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"3.10.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates/"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-31T18:31:33.947961947Z"}}