{"id":"CVE-2025-3446","summary":"Members Without Guest Invite Permissions Can Add Guests to Teams","details":"Mattermost versions 10.6.x \u003c= 10.6.1, 10.5.x \u003c= 10.5.2, 10.4.x \u003c= 10.4.4, 9.11.x \u003c= 9.11.11 fail to check the correct permissions which allows authenticated users who only have permission to invite non-guest users to a team to add guest users to that team via the API to add a single user to a team.","aliases":["GHSA-r7r2-m3vr-c8qc","GO-2025-3693"],"modified":"2026-05-28T04:10:35.359131774Z","published":"2025-05-15T10:43:46.639Z","related":["openSUSE-SU-2025:15159-1"],"database_specific":{"cna_assigner":"Mattermost","cwe_ids":["CWE-863"],"unresolved_ranges":[{"extracted_events":[{"introduced":"10.6.0"},{"last_affected":"10.6.1"},{"introduced":"10.5.0"},{"last_affected":"10.5.2"},{"introduced":"10.4.0"},{"last_affected":"10.4.4"},{"introduced":"9.11.0"},{"last_affected":"9.11.11"}],"source":"AFFECTED_FIELD"}],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/3xxx/CVE-2025-3446.json"},"references":[{"type":"WEB","url":"https://mattermost.com/security-updates"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/3xxx/CVE-2025-3446.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-3446"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost","events":[{"introduced":"0bc2ddd42375a75ab14e63f038165150d4f07659"},{"fixed":"e4fe8d850b9e004bd83bde62b925c33c93a80304"},{"introduced":"7c8c0b7464fa9cd2fbfb97c65d1475b4be2e765c"},{"fixed":"5309b12d92400b00822488c7ec92e40ea50aaae7"},{"introduced":"58bd34fd34cbd7d3da777d627b6cffdf8a532930"},{"fixed":"844447fbd57c8afc26431f7b200f44b02e0079cd"},{"introduced":"5eebc77b68c0c2b63103316e3c92342c13fd93f9"},{"fixed":"76ab3867b7857f6ae22f619a3d07bacdec6510c0"}],"database_specific":{"cpe":"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"9.11.0"},{"fixed":"9.11.12"},{"introduced":"10.4.0"},{"fixed":"10.4.5"},{"introduced":"10.5.0"},{"fixed":"10.5.3"},{"introduced":"10.6.0"},{"fixed":"10.6.2"}],"source":"CPE_RANGE"}}],"versions":["v10.5.3-rc1","v10.6.2-rc1","v10.4.5-rc1","v9.11.12-rc1","v9.11.11-rc1","v9.11.11","v9.11.10","v10.4.4","v10.5.2","v10.6.1","v10.6.0-rc3","v10.6.0","mattermost-redux@10.6.0","@mattermost/types@10.6.0","@mattermost/client@10.6.0","v9.11.10-rc1","v9.11.9","v10.5.1","v10.4.3","v10.4.3-rc3","v10.5.1-rc2","v10.5.1-rc1","v9.11.9-rc2","v10.4.3-rc2","v9.11.9-rc1","v10.4.3-rc1","v10.5.0-rc6","v10.5.0","@mattermost/types@10.5.0","@mattermost/client@10.5.0","v9.11.8","v10.4.2","v9.11.7-rc3","v9.11.7","v10.4.1","v9.11.7-rc2","v10.4.0-rc3","v10.4.0","@mattermost/types@10.4.0","@mattermost/client@10.4.0","v9.11.7-rc1","v9.11.6","v9.11.6-rc2","v9.11.6-rc1","v9.11.5","v9.11.5-rc1","v9.11.4","v9.11.4-rc1","v9.11.3","v9.11.3-rc2","v9.11.3-rc1","v9.11.2","v9.11.2-rc2","v9.11.2-rc1","v9.11.1-rc1","v9.11.1","v9.11.0-rc3","v9.11.0","@mattermost/types@9.11.0","@mattermost/client@9.11.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-3446.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"}]}