Pretalx Limited File Write to Remote Code Execution

This module exploits CVE-2023-28458, a limited file write in Pretalx, up to version 2.3.1. The module will use the vulnerability to write a malicious site-specific configuration hook forPython. Once hook is written, payload will be executed every time Pretalx user runs any Python code. Pretalx needs to run in debug mode to exploit this.