Cross-site request forgery (CSRF) vulnerability in Rebooter(WATCH BOOT nino RPC-M2C [End of Sale] all firmware versions, WATCH BOOT light RPC-M5C [End of Sale] all firmware versions, WATCH BOOT L-zero RPC-M4L [End of Sale] all firmware versions, WATCH BOOT mini RPC-M4H [End of Sale] all firmware versions, WATCH BOOT nino RPC-M2CS firmware version 1.00A to 1.00D, WATCH BOOT light RPC-M5CS firmware version 1.00A to 1.00D, WATCH BOOT L-zero RPC-M4LS firmware version 1.00A to 1.20A, and Signage Rebooter RPC-M4HSi firmware version 1.00A), PoE Rebooter(PoE BOOT nino PoE8M2 firmware version 1.00A to 1.20A), Scheduler(TIME BOOT mini RSC-MT4H [End of Sale] all firmware versions, TIME BOOT RSC-MT8F [End of Sale] all firmware versions, TIME BOOT RSC-MT8FP [End of Sale] all firmware versions, TIME BOOT mini RSC-MT4HS firmware version 1.00A to 1.10A, and TIME BOOT RSC-MT8FS firmware version 1.00A to 1.00E), and Contact Converter(POSE SE10-8A7B1 firmware version 1.00A to 1.20A) allows a remote attacker to hijack the authentication of an administrator and conduct arbitrary operations by having a user to view a specially crafted page.