Remeber to disable debugging tools on your live server as they can be a potential security risk. Patreon had to learn this the hard way. This is what detectify labs had to say about how the hack was executed:
Yesterday Patreon, which is a funding platform for artists and creators, went out with a Security Notice about a compromise happening on the 28th of September on one of their debug versions which was publicly available. Shortly after that, data from this instance, which contained live data, was publicly posted which you can read about here and here.
Their debug version of the application was running with the Werkzeug Debugger publicly available [..]