An authenticated attacker can leverage an exposed resource.db() accessor method to smuggle Python method calls via a Jinja template, which can lead to code execution.
An authenticated attacker can leverage an exposed getattr() method via a Jinja template to smuggle OS commands and perform other actions that are normally expected to be private methods.
An authenticated attacker can leverage an exposed “box” object to read and write arbitrary files from disk, provided those files can be parsed as yaml or JSON.
THREATIST.IORead the docs