SQLAdmin: Authorization Bypass on `ajax_lookup`

SQLAdmin is a flexible Admin interface for SQLAlchemy models. Prior to version 0.25.1, the ajax_lookup endpoint in application.py bypasses the is_accessible() access control check that all other endpoints enforce. If a developer restricts model access by overriding is_accessible(), an authenticated user can still query that model's data through the ajax_lookup endpoint — silently bypassing the restriction. This issue has been patched in version 0.25.1.