SteVe is an open platform that implements different version of the OCPP protocol for Electric Vehicle charge points, acting as a central server for management of registered charge points. Attackers can inject arbitrary HTML and Javascript code via WebSockets leading to persistent Cross-Site Scripting in the SteVe management interface.

SteVe v3.6.0 was discovered to use predictable transaction ID's when receiving a StartTransaction request. This vulnerability can allow attackers to cause a Denial of Service (DoS) by using the predicted transaction ID's to terminate other transactions.