CVE-2026-53593

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.224, the denylist that neutralizes dangerous file uploads "Helper::$restrictedextensions" is incomplete: it does not cover the ".pht" extension. The authenticated upload endpoint "POST...

Mattermost Fails to Validate Remote Cluster Upload Sessions

Mattermost versions 10.8.x = 10.8.3, 10.5.x = 10.5.8, 9.11.x = 9.11.17, 10.9.x = 10.9.2, 10.10.x = 10.10.0 fail to validate upload types in remote cluster upload sessions which allows a system admin to upload non-attachment file types via shared channels that could potentially be placed in...