It was observed that all the Toshiba printers contain credentials used for WebDAV access in the readable file. Then, it is possible to get a full access with WebDAV to the printer. As for the affected products/models/versions, see the reference URL.
https://www.toshibatec.com/information/pdf/information20240531_01.pdf
https://www.toshibatec.com/information/20240531_01.html