{"id":"CVE-2025-55073","details":"Mattermost versions 10.11.x \u003c= 10.11.3, 10.5.x \u003c= 10.5.11, 10.12.x \u003c= 10.12.0 fail to validate the relationship between the post being updated and the MSTeams plugin OAuth flow which allows an attacker to edit arbitrary posts via a crafted MSTeams plugin OAuth redirect URL.","aliases":["GHSA-ff85-qw3h-g9vp","GO-2025-4129"],"modified":"2026-03-13T03:34:20.930670Z","published":"2025-11-14T08:15:45.687Z","references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost-server","events":[{"introduced":"58bd34fd34cbd7d3da777d627b6cffdf8a532930"},{"fixed":"9fa25cd55b43d735a39c6925d7e0021697ae049d"},{"introduced":"5b955468ea1ea8b56c0fb10feb258a36a767d7bb"},{"fixed":"83a5be3f9ed65d8457ab8cca853826d0c8425a8b"},{"introduced":"ba3dc1612ce8f37bf9814b1ea6364181fb5abd62"},{"fixed":"6819e6e43e17a7a449727be2b7431f4a28477510"}],"database_specific":{"versions":[{"introduced":"10.5.0"},{"fixed":"10.5.12"},{"introduced":"10.11.0"},{"fixed":"10.11.4"},{"introduced":"10.12.0"},{"fixed":"10.12.1"}]}}],"versions":["@mattermost/client@10.11.0","@mattermost/client@10.12.0","@mattermost/client@10.5.0","@mattermost/types@10.11.0","@mattermost/types@10.12.0","@mattermost/types@10.5.0","mattermost-redux@10.11.0","mattermost-redux@10.12.0","v10.11.0","v10.11.0-rc3","v10.11.1","v10.11.1-rc1","v10.11.2","v10.11.2-rc1","v10.11.2-rc2","v10.11.3","v10.11.4-rc1","v10.11.4-rc2","v10.12.0","v10.12.0-rc1","v10.12.0-rc2","v10.12.0-rc3","v10.12.1-rc1","v10.5.0","v10.5.0-rc6","v10.5.1","v10.5.1-rc1","v10.5.1-rc2","v10.5.10","v10.5.10-rc1","v10.5.10-rc2","v10.5.11","v10.5.11-rc1","v10.5.12-rc1","v10.5.2","v10.5.3","v10.5.3-rc1","v10.5.4","v10.5.4-rc1","v10.5.4-rc2","v10.5.5","v10.5.5-rc1","v10.5.6","v10.5.6-rc1","v10.5.7","v10.5.8","v10.5.8-rc1","v10.5.9","v10.5.9-rc1","v10.5.9-rc2","v10.5.9-rc3","v10.5.9-rc4"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-55073.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"}]}