{"id":"CVE-2022-2408","aliases":["EUVD-2022-34671","GHSA-3q29-6c6h-84hh"],"status":"published","title":"Guest accounts can list all public channels","description":"The Guest account feature in Mattermost version 6.7.0 and earlier fails to properly restrict the permissions, which allows a guest user to fetch a list of all public channels in the team, in spite of not being part of those channels.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00599,"percentile":0.48975,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200","CWE-668","CWE-863"],"published":"2022-07-14T17:25:20Z","modified":"2026-10-28T02:31:12Z","products":[{"vendor":"mattermost","product":"mattermost"}],"references":[{"url":"https://mattermost.com/security-updates/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-2408","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-3q29-6c6h-84hh"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/2xxx/CVE-2022-2408.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2022-2408","title":"Guest accounts can list all public channels","description":"The Guest account feature in Mattermost version 6.7.0 and earlier fails to properly restrict the permissions, which allows a guest user to fetch a list of all public channels in the team, in spite of not being part of those channels.","status":"published","published":"2022-07-14T17:25:20Z","modified":"2024-12-06T23:08:12.973Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:34:32.495407Z"}],"euvd":[{"id":"EUVD-2022-34671","description":"The Guest account feature in Mattermost version 6.7.0 and earlier fails to properly restrict the permissions, which allows a guest user to fetch a list of all public channels in the team, in spite of not being part of those channels.","status":"published","published":"2022-07-14T17:25:20Z","modified":"2024-12-06T23:08:12Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T00:04:38.652605Z"}],"ghsa":[{"id":"GHSA-3q29-6c6h-84hh","title":"The Guest account feature in Mattermost version 6.7.0 and earlier fails to properly restrict the...","description":"The Guest account feature in Mattermost version 6.7.0 and earlier fails to properly restrict the permissions, which allows a guest user to fetch a list of all public channels in the team, in spite of not being part of those channels.","status":"published","published":"2022-07-15T00:00:16Z","modified":"2023-06-30T21:30:20Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-200","CWE-668","CWE-863"],"updated_at":"2026-11-02T14:54:39.908875Z"}],"nvd":[{"id":"CVE-2022-2408","description":"The Guest account feature in Mattermost version 6.7.0 and earlier fails to properly restrict the permissions, which allows a guest user to fetch a list of all public channels in the team, in spite of not being part of those channels.","status":"published","published":"2022-07-14T18:15:08.42Z","modified":"2026-06-17T04:41:50.51Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200","CWE-863"],"updated_at":"2026-11-02T14:07:23.686531Z"}],"osv":[{"id":"CVE-2022-2408","title":"Guest accounts can list all public channels","description":"The Guest account feature in Mattermost version 6.7.0 and earlier fails to properly restrict the permissions, which allows a guest user to fetch a list of all public channels in the team, in spite of not being part of those channels.","status":"published","published":"2022-07-14T17:25:20Z","modified":"2026-10-28T02:31:12.350594216Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:44:24.428403Z"}]}}