CVE-2025-6465

Mattermost Server is affected by CVE-2025-6465 due to failure to sanitize file names in file streaming APIs, enabling path-traversal to overwrite attachment thumbnails by users with file upload permission. Affected versions include Mattermost Server 10.8.x up to 10.8.3, 10.5.x up to 10.5.8, 10.10...