{"id":"CVE-2017-18919","aliases":["EUVD-2017-10009","GHSA-j94w-wc6p-v83p"],"status":"published","title":"An issue was discovered in Mattermost Server before 3.7.0 and 3.6.3. Attackers can use the API...","description":"An issue was discovered in Mattermost Server before 3.7.0 and 3.6.3. Attackers can use the API for unauthenticated team creation.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00769,"percentile":0.55854,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2020-06-19T19:20:39Z","modified":"2026-10-24T10:31:00Z","products":[{"vendor":"mattermost","product":"mattermost_server"}],"references":[{"url":"https://mattermost.com/security-updates/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18919"},{"url":"https://github.com/advisories/GHSA-j94w-wc6p-v83p"}],"sources":{"cve":[{"id":"CVE-2017-18919","description":"An issue was discovered in Mattermost Server before 3.7.0 and 3.6.3. Attackers can use the API for unauthenticated team creation.","status":"published","published":"2020-06-19T19:20:39Z","modified":"2024-08-05T21:37:44.45Z","updated_at":"2026-11-02T14:33:22.064284Z"}],"euvd":[{"id":"EUVD-2017-10009","description":"An issue was discovered in Mattermost Server before 3.7.0 and 3.6.3. Attackers can use the API for unauthenticated team creation.","status":"published","published":"2020-06-19T19:20:39Z","modified":"2024-08-05T21:37:44Z","updated_at":"2026-11-03T02:23:05.158876Z"}],"ghsa":[{"id":"GHSA-j94w-wc6p-v83p","title":"An issue was discovered in Mattermost Server before 3.7.0 and 3.6.3. Attackers can use the API...","description":"An issue was discovered in Mattermost Server before 3.7.0 and 3.6.3. Attackers can use the API for unauthenticated team creation.","status":"published","published":"2022-05-24T17:21:08Z","modified":"2023-01-29T05:02:56Z","updated_at":"2026-11-02T14:45:12.348503Z"}],"nvd":[{"id":"CVE-2017-18919","description":"An issue was discovered in Mattermost Server before 3.7.0 and 3.6.3. Attackers can use the API for unauthenticated team creation.","status":"published","published":"2020-06-19T20:15:12.647Z","modified":"2026-06-17T01:13:49.847Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:04:21.160774Z"}],"osv":[{"id":"CVE-2017-18919","description":"An issue was discovered in Mattermost Server before 3.7.0 and 3.6.3. Attackers can use the API for unauthenticated team creation.","status":"published","published":"2020-06-19T20:15:12.647Z","modified":"2026-10-24T10:31:00.913968139Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:05.486486Z"}]}}