{"id":"CVE-2023-5194","aliases":["EUVD-2023-2518","GHSA-h69v-mvh9-hfrq"],"status":"published","title":"A system/user manager can demote / deactivate another manager","description":"Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a system/user manager to demote / deactivate another manager","severity":{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00399,"percentile":0.34533,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-863"],"published":"2023-09-29T09:28:50Z","modified":"2026-10-28T02:30:32Z","fixes":[{"ecosystem":"Go","package":"github.com/mattermost/mattermost/server/v8","fixed_in":["8.1.1","8.0.2"],"sources":["ghsa","osv"]},{"ecosystem":"Go","package":"github.com/mattermost/mattermost-server/v6","fixed_in":["7.8.10"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/mattermost/mattermost/server/v8","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.1.0"},{"last_affected":"8.1.0"},{"fixed":"8.1.1"}]}],"versions":["8.1.0"]},{"source":"ghsa","ecosystem":"Go","package":"github.com/mattermost/mattermost/server/v8","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0"},{"fixed":"8.0.2"}]}]},{"source":"ghsa","ecosystem":"Go","package":"github.com/mattermost/mattermost-server/v6","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.8.10"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/mattermost/mattermost/server/v8","ranges":[{"type":"SEMVER","events":[{"introduced":"8.1.0"},{"fixed":"8.1.1"}]}],"versions":["8.1.0"]},{"source":"osv","ecosystem":"Go","package":"github.com/mattermost/mattermost/server/v8","ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.0.2"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/mattermost/mattermost-server/v6","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"7.8.10"}]}]}],"products":[{"vendor":"mattermost","product":"mattermost"}],"references":[{"url":"https://mattermost.com/security-updates","tags":["x_transferred","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-5194","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-h69v-mvh9-hfrq"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5194.json","tags":["advisory"]},{"url":"https://github.com/mattermost/mattermost","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-5194","title":"A system/user manager can demote / deactivate another manager","description":"Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a system/user manager to demote / deactivate another manager\n\n","status":"published","published":"2023-09-29T09:28:50.676Z","modified":"2024-09-05T19:59:54.546Z","cvss":[{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:35:16.771348Z"}],"euvd":[{"id":"EUVD-2023-2518","description":"Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a system/user manager to demote / deactivate another manager\n\n","status":"published","published":"2023-09-29T09:28:50Z","modified":"2024-09-05T19:59:54Z","cvss":[{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-03T00:56:02.678796Z"}],"ghsa":[{"id":"GHSA-h69v-mvh9-hfrq","title":"Mattermost Incorrect Authorization vulnerability","description":"Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a system/user manager to demote / deactivate another manager\n\n","status":"published","published":"2023-09-29T12:30:16Z","modified":"2023-11-07T05:01:39Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:37:15.055009Z"}],"nvd":[{"id":"CVE-2023-5194","description":"Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a system/user manager to demote / deactivate another manager\n\n","status":"published","published":"2023-09-29T10:15:10.757Z","modified":"2026-06-17T06:47:50.52Z","cvss":[{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:08:35.022405Z"}],"osv":[{"id":"CVE-2023-5194","title":"A system/user manager can demote / deactivate another manager","description":"Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a system/user manager to demote / deactivate another manager\n\n","status":"published","published":"2023-09-29T09:28:50.676Z","modified":"2026-10-28T02:30:32.604627149Z","cvss":[{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:44:35.245372Z"},{"id":"GHSA-h69v-mvh9-hfrq","title":"Mattermost Incorrect Authorization vulnerability","description":"Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a system/user manager to demote / deactivate another manager\n\n","status":"published","published":"2023-09-29T12:30:16Z","modified":"2023-11-08T04:13:45.729486Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:46:48.546324Z"}]}}