{"id":"CVE-2023-1774","details":"When processing an email invite to a private channel on a team, Mattermost fails to validate the inviter's permission to that channel, allowing an attacker to invite themselves to a private channel.\n\n\n","aliases":["BIT-mattermost-2023-1774","GHSA-9hj7-v56g-rhf6"],"modified":"2026-04-10T04:54:29.051422Z","published":"2023-03-31T12:15:06.650Z","references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost-server","events":[{"introduced":"0"},{"fixed":"5a8ebc95d0cbf61d974430d4c03c3ffef36d4543"},{"introduced":"0"},{"last_affected":"63149c4869898f8c1d3a94ea728370ec4a07575f"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"7.1.6"},{"introduced":"0"},{"last_affected":"7.7.1"}]}}],"versions":["cloud-2022-06-29-1","cloud-2022-07-20-1","cloud-2022-08-10-1","cloud-2022-09-08-1","cloud-2022-10-06-1","cloud-2022-11-11-1","cloud-2022-11-24-1","v0.5.0","v4.10.0-rc1","v4.2.0-rc1","v4.3.0-rc1","v4.4.0-rc1","v4.5.0-rc1","v4.6.0-rc1","v4.6.0-rc2","v4.7.0-rc1","v4.8.0-rc1","v4.9.0-rc1","v5.0.0-rc1","v5.1.0-rc1","v5.2.0-rc1","v5.2.0-rc2","v7.1.0","v7.1.1","v7.1.2","v7.1.3","v7.1.4","v7.1.5","v7.7.0","v7.7.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-1774.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:L/I:L/A:N"}]}