GHSA-6H3C-R723-7FX3 NL Portal: IDOR allows any authenticated user to complete and tamper with another user's taak

Impact In versions from 1.5.0 up to and including 3.0.0, any authenticated portal user could complete and tamper with another user's open task by submitting it on their behalf. The task submission endpoint accepted a task ID and a payload, but it never checked whether the task actually belonged t...