{"id":"CVE-2018-21264","aliases":["EUVD-2018-13779","GHSA-rrjf-p8qj-v8x7"],"status":"published","title":"An issue was discovered in Mattermost Server before 4.7.0, 4.6.2, and 4.5.2. It did not enforce...","description":"An issue was discovered in Mattermost Server before 4.7.0, 4.6.2, and 4.5.2. It did not enforce the expiration date of a SAML response.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01117,"percentile":0.66337,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2020-06-19T17:44:05Z","modified":"2026-10-24T10:31:05Z","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-2018-21264"},{"url":"https://github.com/advisories/GHSA-rrjf-p8qj-v8x7"}],"sources":{"cve":[{"id":"CVE-2018-21264","description":"An issue was discovered in Mattermost Server before 4.7.0, 4.6.2, and 4.5.2. It did not enforce the expiration date of a SAML response.","status":"published","published":"2020-06-19T17:44:05Z","modified":"2024-08-05T12:26:39.592Z","updated_at":"2026-11-02T14:35:02.289647Z"}],"euvd":[{"id":"EUVD-2018-13779","description":"An issue was discovered in Mattermost Server before 4.7.0, 4.6.2, and 4.5.2. It did not enforce the expiration date of a SAML response.","status":"published","published":"2020-06-19T17:44:05Z","modified":"2024-08-05T12:26:39Z","updated_at":"2026-11-03T02:39:27.400094Z"}],"ghsa":[{"id":"GHSA-rrjf-p8qj-v8x7","title":"An issue was discovered in Mattermost Server before 4.7.0, 4.6.2, and 4.5.2. It did not enforce...","description":"An issue was discovered in Mattermost Server before 4.7.0, 4.6.2, and 4.5.2. It did not enforce the expiration date of a SAML response.","status":"published","published":"2022-05-24T17:21:10Z","modified":"2023-01-29T05:03:05Z","updated_at":"2026-11-02T14:45:14.198561Z"}],"nvd":[{"id":"CVE-2018-21264","description":"An issue was discovered in Mattermost Server before 4.7.0, 4.6.2, and 4.5.2. It did not enforce the expiration date of a SAML response.","status":"published","published":"2020-06-19T18:15:10.803Z","modified":"2026-06-17T01:54:29.757Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:05:00.03074Z"}],"osv":[{"id":"CVE-2018-21264","description":"An issue was discovered in Mattermost Server before 4.7.0, 4.6.2, and 4.5.2. It did not enforce the expiration date of a SAML response.","status":"published","published":"2020-06-19T18:15:10.803Z","modified":"2026-10-24T10:31:05.14186982Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:09.145458Z"}]}}