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Marius CiepluchandClaude Opus 5.5
ece4473c2b
The core-hook-argument class from the second PMPro adjudication: pmpro_membership_history_profile_fields($user) on `edit_user_profile` was a route entry, so its parameters were attacker input -- and $user is the WP_User WordPress loaded; its ID became an SQL injection. A callback registered in a string-keyed registry is handed its arguments by the matching apply call, not by the request. The mapper now records the registration call on the entry (`registered_by`), regions carry it, and the dispatch fact says which registrations DO hand a callback request-borne arguments (`request_arguments`; WordPress: add_shortcode, whose $atts are post content). Every other registered callback keeps its call depth but its parameters stop being sources; request data that reaches an apply call's arguments is still followed by the hook half of the taint query. REST routes are not registry entries and keep the parameter rule. Controls: the fact field is validated against `register`; a hook callback is not input, a shortcode and a plain route are. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]> Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo