{"id":"CVE-2017-18914","aliases":["EUVD-2017-10004","GHSA-rw5h-x7vv-2w28"],"status":"published","title":"An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. An external link can...","description":"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.","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":0.00811,"percentile":0.57208,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-754"],"published":"2020-06-19T19:16:05Z","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-2017-18914"},{"url":"https://github.com/advisories/GHSA-rw5h-x7vv-2w28"}],"sources":{"cve":[{"id":"CVE-2017-18914","description":"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.","status":"published","published":"2020-06-19T19:16:05Z","modified":"2024-08-05T21:37:44.451Z","updated_at":"2026-11-02T14:33:22.064284Z"}],"euvd":[{"id":"EUVD-2017-10004","description":"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.","status":"published","published":"2020-06-19T19:16:05Z","modified":"2024-08-05T21:37:44Z","updated_at":"2026-11-03T02:23:05.158876Z"}],"ghsa":[{"id":"GHSA-rw5h-x7vv-2w28","title":"An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. An external link can...","description":"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.","status":"published","published":"2022-05-24T17:21:07Z","modified":"2023-01-29T05:03:05Z","updated_at":"2026-11-02T14:45:14.198561Z"}],"nvd":[{"id":"CVE-2017-18914","description":"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.","status":"published","published":"2020-06-19T20:15:12.367Z","modified":"2026-06-17T01:13:49.3Z","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-754"],"updated_at":"2026-11-02T14:04:21.160774Z"}],"osv":[{"id":"CVE-2017-18914","description":"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.","status":"published","published":"2020-06-19T20:15:12.367Z","modified":"2026-10-24T10:31:00.978572058Z","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"}]}}