PraisonAI Platform is the platform layer for the PraisonAI multi-agent teams system. Versions prior to 0.1.4 have a broken workspace authorization check that allows any authenticated low-privilege workspace member to escalate their own role to "owner". The issue is caused by privileged workspace-management routes using the shared dependency "require_workspace_member(...)" without requiring "admin" or "owner". The dependency defaults to "min_role="member"", so routes that should be administrative are accessible to ordinary workspace members. As a result, a normal workspace member can promote their own account from "member" to "owner"; add arbitrary users as "owner" or "admin"; change other members' roles; remove legitimate owners or members; take over workspace membership completely; and/or perform destructive workspace operations after escalation. This is a broken access control / vertical privilege escalation vulnerability. PraisonAI Platform version 0.1.4 patches the issue.