[In] ShowDoc version before 2.8.7, an unrestricted and unauthenticated file upload issue is found and [an] attacker is able to upload a web shell and execute arbitrary code on server.
The bug, which has a maximum-rated vulnerability severity score of 10.0, allows hackers to remotely break into networks running its Catalyst SD-WAN products, which allow large companies and government agencies with multiple offices to connect their private networks over long distances.