{"id":"CVE-2023-3613","aliases":["BIT-mattermost-2023-3613","EUVD-2023-44262","GHSA-v326-937j-3p86"],"status":"published","title":"Guest accounts invited and added to channels by Welcomebot plugin","description":"Mattermost WelcomeBot plugin fails to to validate the membership status when inviting or adding users to channels allowing guest accounts to be added or invited to channels by default.","severity":{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00294,"percentile":0.22126,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-863"],"published":"2023-07-17T15:31:23Z","modified":"2026-10-28T02:30:51Z","fixes":[{"ecosystem":"Bitnami","package":"mattermost","fixed_in":["7.8.6","7.10.3"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"mattermost","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"7.8.6"},{"introduced":"7.9.0"},{"fixed":"7.10.3"}]}]}],"products":[{"vendor":"mattermost","product":"mattermost plugins"},{"vendor":"mattermost","product":"mattermost_server"}],"references":[{"url":"https://mattermost.com/security-updates","tags":["x_transferred","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3613","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-v326-937j-3p86"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3613.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-3613","title":"Guest accounts invited and added to channels by Welcomebot plugin","description":"Mattermost WelcomeBot plugin fails to to validate the membership status when inviting or adding users to channels allowing guest accounts to be added or invited to channels by default. \n\n","status":"published","published":"2023-07-17T15:31:23.674Z","modified":"2024-10-21T19:39:44.854Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:35:24.707957Z"}],"euvd":[{"id":"EUVD-2023-44262","description":"Mattermost WelcomeBot plugin fails to to validate the membership status when inviting or adding users to channels allowing guest accounts to be added or invited to channels by default. \n\n","status":"published","published":"2023-07-17T15:31:23Z","modified":"2024-10-21T19:39:44Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N","level":"low"}],"updated_at":"2026-11-03T00:05:23.140259Z"}],"ghsa":[{"id":"GHSA-v326-937j-3p86","title":"Mattermost WelcomeBot plugin fails to to validate the membership status when inviting or adding...","description":"Mattermost WelcomeBot plugin fails to to validate the membership status when inviting or adding users to channels allowing guest accounts to be added or invited to channels by default. \n\n","status":"published","published":"2023-07-17T18:31:28Z","modified":"2024-04-04T06:11:06Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:56:39.852376Z"}],"nvd":[{"id":"CVE-2023-3613","description":"Mattermost WelcomeBot plugin fails to to validate the membership status when inviting or adding users to channels allowing guest accounts to be added or invited to channels by default. \n\n","status":"published","published":"2023-07-17T16:15:11.107Z","modified":"2026-06-17T06:14:28.107Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N","level":"low","assessor":"secondary"},{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:08:17.044696Z"}],"osv":[{"id":"CVE-2023-3613","title":"Guest accounts invited and added to channels by Welcomebot plugin","description":"Mattermost WelcomeBot plugin fails to to validate the membership status when inviting or adding users to channels allowing guest accounts to be added or invited to channels by default. \n\n","status":"published","published":"2023-07-17T15:31:23.674Z","modified":"2026-10-28T02:30:51.226732217Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:44:32.510144Z"},{"id":"BIT-mattermost-2023-3613","description":"Mattermost WelcomeBot plugin fails to to validate the membership status when inviting or adding users to channels allowing guest accounts to be added or invited to channels by default.","status":"published","published":"2024-03-06T10:59:37.473Z","modified":"2025-04-03T14:40:37.652Z","updated_at":"2026-11-02T15:28:33.072289Z"}]}}