{"id":"CVE-2024-36257","details":"Mattermost versions 9.5.x \u003c= 9.5.5 and 9.8.0, when using shared channels with multiple remote servers connected, fail to check that the remote server A requesting the server B to update the profile picture of a user is the remote that actually has the user as a local one . This allows a malicious remote A to change the profile images of users that belong to another remote server C that is connected to the server A.","modified":"2025-11-15T20:58:12.017177Z","published":"2024-07-03T09:15:06.247Z","references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost-server","events":[{"introduced":"99d819d25d0b16b3faed901b1fe5c41de7655e9c"},{"fixed":"01723a784c5ed96feb0f5c90518f8078ae798178"}]}],"versions":["@mattermost/client@9.5.0","@mattermost/types@9.5.0","v9.5.0","v9.5.0-rc3","v9.5.1","v9.5.1-rc1","v9.5.2","v9.5.3","v9.5.3-rc1","v9.5.3-rc2","v9.5.3-rc3","v9.5.4","v9.5.4-rc1","v9.5.4-rc2","v9.5.5","v9.5.5-rc1","v9.5.6-rc1","v9.5.6-rc2"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-36257.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"}]}