Directorist < 8.9.5 - Subscriber+ Cross-User Favorites Read and Write via REST Favorites Endpoint

The Directorist: AI-Powered Business Directory, Listings & Classified Ads WordPress plugin before 8.9.5 does not verify that the target user of a REST route matches the authenticated caller before reading and modifying that user's saved favorites, allowing any authenticated user with subscriber-level access to view and alter another user's favorites.