Ariane Allegro Scenario Player through 2024-03-05, when Ariane Duo kiosk mode is used, allows physically proximate attackers to obtain sensitive information (such as hotel invoice content with PII), and potentially create unauthorized room keys, by entering a guest-search quote character and then accessing the underlying Windows OS.
https://www.pentagrid.ch/en/blog/ariane-allegro-hotel-check-in-terminal-kios-escape/