GHSA-5PG6-M483-7VRG Vikunja has cross-tenant IDOR in kanban move-task endpoint via unauthorized body task_id

Summary The kanban endpoint POST /api/v1/projects/project/views/view/buckets/bucket/tasks moves a task into a bucket. The task is identified by taskid in the request body. The endpoint's authorization check TaskBucket.CanUpdate only verifies that the caller may update the project/view/bucket name...

Vikunja vulnerable to Improper Authorization and Authorization Bypass Through User-Controlled Key

Summary A user with only a single self-owned project can permanently destroy the Kanban bucket assignments taskbuckets and task ordering taskpositions of any other project view in the entire instance. The ProjectView.Delete model method runs three SQL statements: the first is properly scoped to...