{"id":"CVE-2024-4195","details":"Mattermost versions 9.6.0, 9.5.x before 9.5.3, and 8.1.x before 8.1.12 fail to fully validate role changes, which allows an attacker authenticated as a team admin to promote guests to team admins via crafted HTTP requests.\n\n","aliases":["GHSA-5fh7-7mw7-mmx5","GO-2024-2793"],"modified":"2026-03-14T12:36:09.501364Z","published":"2024-04-26T09:15:12.897Z","references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost-server","events":[{"introduced":"096c9ea12a2144f832e330e9a0f4d3862ca20b9f"},{"fixed":"c91d188755c63cc41237105b5f871a341e5faafd"},{"introduced":"99d819d25d0b16b3faed901b1fe5c41de7655e9c"},{"fixed":"baf02ba4e27d641a53785ab0c6bc9a9870b237a6"}],"database_specific":{"versions":[{"introduced":"8.1.0"},{"fixed":"8.1.12"},{"introduced":"9.5.0"},{"fixed":"9.5.3"}]}}],"versions":["@mattermost/client@8.1.1","@mattermost/client@9.5.0","@mattermost/types@8.1.1","@mattermost/types@9.5.0","v8.1.0","v8.1.0-rc2","v8.1.1","v8.1.1-rc1","v8.1.1-rc2","v8.1.10","v8.1.10-rc1","v8.1.11","v8.1.11-rc1","v8.1.12-rc1","v8.1.12-rc2","v8.1.12-rc3","v8.1.2","v8.1.2-rc1","v8.1.2-rc2","v8.1.3","v8.1.3-rc1","v8.1.3-rc2","v8.1.4","v8.1.4-rc1","v8.1.4-rc2","v8.1.5","v8.1.5-rc1","v8.1.5-rc2","v8.1.6","v8.1.6-rc1","v8.1.7","v8.1.7-rc1","v8.1.7-rc2","v8.1.7-rc3","v8.1.8","v8.1.8-rc1","v8.1.8-rc2","v8.1.9","v8.1.9-rc1","v8.1.9-rc2","v9.5.0","v9.5.0-rc3","v9.5.1","v9.5.1-rc1","v9.5.2","v9.5.3-rc1","v9.5.3-rc2","v9.5.3-rc3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-4195.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N"}]}