CVE-2026-52825 Kimai: Improper Authorization in Kimai Team Member and Team Activity Assignment APIs Allows Expansion of Team Scope Beyond Authorized Visibility

Kimai is an open-source time tracking application. Prior to 2.58.0, POST /api/teams/id/members/userId and POST /api/teams/id/activities/activityId verify that a teamlead may edit the Team but do not verify accessuser for the referenced User or view access for the referenced Activity. A teamlead c...