{"id":"CVE-2025-6465","details":"Mattermost versions 10.8.x \u003c= 10.8.3, 10.5.x \u003c= 10.5.8, 10.10.x \u003c= 10.10.0, 10.9.x \u003c= 10.9.3 fail to sanitize file names which allows users with file upload permission to overwrite file attachment thumbnails via path traversal in file streaming APIs.","aliases":["GHSA-pj6f-rc94-gw53","GO-2025-3910"],"modified":"2026-04-10T05:33:54.671717Z","published":"2025-08-21T17:15:32.707Z","references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost-server","events":[{"introduced":"58bd34fd34cbd7d3da777d627b6cffdf8a532930"},{"fixed":"c602a4a78e1f60b9a97ee5bce509ecad4177340c"},{"introduced":"bb105f3a2785636ad53b2d0bf4027900d41f6a67"},{"fixed":"6880f9b5908f20c6c4db1456d3a27603af01dd72"},{"introduced":"14775836a78c8257de08fff229d364755346eff9"},{"fixed":"3b7a835de6c3e0a43212516f91d7e679daa56bb6"},{"introduced":"0"},{"last_affected":"c8bd5c937551a4e9ad23f5a4fd8aaf7604d046dd"}],"database_specific":{"versions":[{"introduced":"10.5.0"},{"fixed":"10.5.9"},{"introduced":"10.8.0"},{"fixed":"10.8.4"},{"introduced":"10.9.0"},{"fixed":"10.9.4"},{"introduced":"0"},{"last_affected":"10.10.0-NA"}]}}],"versions":["@mattermost/client@10.5.0","@mattermost/client@10.8.0","@mattermost/types@10.5.0","@mattermost/types@10.8.0","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","mattermost-redux@10.8.0","server/public/v0.0.10","server/public/v0.0.11","server/public/v0.0.12","server/public/v0.0.13","server/public/v0.0.14","server/public/v0.0.15","server/public/v0.0.16","server/public/v0.0.17","server/public/v0.0.18","server/public/v0.0.5","server/public/v0.0.6","server/public/v0.0.7","server/public/v0.0.8","server/public/v0.0.9","server/public/v0.1.0","server/public/v0.1.1","server/public/v0.1.10","server/public/v0.1.11","server/public/v0.1.12","server/public/v0.1.13","server/public/v0.1.14","server/public/v0.1.15","server/public/v0.1.2","server/public/v0.1.3","server/public/v0.1.4","server/public/v0.1.5","server/public/v0.1.6","server/public/v0.1.7","server/public/v0.1.8","server/public/v0.1.9","v0.5.0","v10.10.0","v10.10.0-rc1","v10.10.0-rc2","v10.10.0-rc3","v10.5.0","v10.5.0-rc6","v10.5.1","v10.5.1-rc1","v10.5.1-rc2","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-rc1","v10.5.9-rc2","v10.5.9-rc3","v10.5.9-rc4","v10.8.0","v10.8.0-rc3","v10.8.1","v10.8.2","v10.8.3","v10.8.4-rc1","v10.8.4-rc2","v10.8.4-rc3","v10.8.4-rc4","v10.9.0","v10.9.0-rc4","v10.9.1","v10.9.2","v10.9.2-rc1","v10.9.3","v10.9.3-rc1","v10.9.3-rc2","v10.9.3-rc3","v10.9.3-rc4","v10.9.4-rc1","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"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-6465.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"}]}