In Bitaxe ESP-Miner before 2.5.0 with AxeOS, one can use an /api/system CSRF attack to update the payout address (aka stratumUser) for a Bitaxe Bitcoin miner, or change the frequency and voltage settings.
The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.