Multiple cross-site scripting (XSS) vulnerabilities in multiple scripts in Forms/ in Huawei MT882 V100R002B020 ARG-T running firmware 3.7.9.98 allow remote attackers to inject arbitrary web script or HTML via the (1) BackButton parameter to error_1; (2) wzConnFlag parameter to fresh_pppoe_1; (3) diag_pppindex_argen and (4) DiagStartFlag parameters to rpDiag_argen_1; (5) wzdmz_active and (6) wzdmzHostIP parameters to rpNATdmz_argen_1; (7) wzVIRTUALSVR_endPort, (8) wzVIRTUALSVR_endPortLocal, (9) wzVIRTUALSVR_IndexFlag, (10) wzVIRTUALSVR_localIP, (11) wzVIRTUALSVR_startPort, and (12) wzVIRTUALSVR_startPortLocal parameters to rpNATvirsvr_argen_1; (13) Connect_DialFlag, (14) Connect_DialHidden, and (15) Connect_Flag parameters to rpStatus_argen_1; (16) Telephone_select, and (17) wzFirstFlag parameters to rpwizard_1; and (18) wzConnectFlag parameter to rpwizPppoe_1.