Cross-site request forgery (CSRF) vulnerability on Moxa MiiNePort_E1_4641 devices with firmware 1.1.10 Build 09120714 MiiNePort_E1_7080 devices with firmware 1.1.10 Build 09120714 MiiNePort_E2_1242 devices with firmware 1.1 Build 10080614 MiiNePort_E2_4561 devices with firmware 1.1 Build 10080614 and MiiNePort E3 devices with firmware 1.0 Build 11071409 allows remote attackers to hijack the authentication of arbitrary users.