Fortinet FortiWan (formerly AscernLink) before 4.2.5 allows remote authenticated users with access to the nslookup functionality to execute arbitrary commands with root privileges via the graph parameter to diagnosiscontrol.php.
Fortinet FortiWan (formerly AscernLink) before 4.2.5 allows remote authenticated users to obtain sensitive information from (1) a backup of the device configuration via script/cfgshow.php or (2) PCAP files via script/system/tcpdump.php.
The diagnosiscontrol.php page in Fortinet FortiWan (formerly AscernLink) before 4.2.5 allows remote authenticated users to download PCAP files via vectors related to the UserName GET parameter.
The linkreport/tmp/adminglobal page in Fortinet FortiWan (formerly AscernLink) before 4.2.5 allows remote authenticated users to discover administrator cookies via a GET request.
Cross-site scripting (XSS) vulnerability in Fortinet FortiWan (formerly AscernLink) before 4.2.5 allows remote attackers to inject arbitrary web script or HTML via the IP parameter to script/statistics/getconn.php.