{"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, 3.10.1, and 3.9.1. A password reset request was sometimes 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":{"url":"https://github.com/mattermost/mattermost/commit/59139390ae927af2e879dbacfe4dadb1adac97c0","label":"mattermost/mattermost@5913939"},"references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18908"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/59139390ae927af2e879dbacfe4dadb1adac97c0"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/d3bc11be3acd3a73e6358d958b91427e2584ea71"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/e5065cf7575ee05c040945a4b00b7fd90bf39b83"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-31T18:31:33.947961947Z"}}