There is no verified information or credible reports indicating that Anthony Joshua has exposed a secret scandal involving Daniel Dubois or that there is a referee controversy shaking the boxing community related to the two fighters. If such a significant event had taken place, it would be widely reported across reputable sports news outlets, given the high-profile nature of both boxers.

Daniel Dubois has been in the spotlight recently, especially following his controversial fight with Oleksandr Usyk, where a disputed low blow call became a topic of debate among fans and analysts. However, there has been no credible indication that Anthony Joshua has come forward with any allegations or scandal involving Dubois or the refereeing of any recent bout. 

In boxing, controversies related to refereeing decisions, judging, or even allegations of misconduct occasionally arise, but these are typically followed by official investigations or statements from relevant sports bodies. The spread of rumors or unverified claims regarding a “secret scandal” can often be misleading and may not have any factual basis. If there were a legitimate controversy involving Joshua and Dubois, it would attract substantial attention from sports journalists and prompt a response from the fighters, their management, or boxing organizations.

It is essential to approach claims of this nature with skepticism and seek information from reliable sources. As of now, there is no verified evidence or trustworthy news confirming a “secret scandal” involving Anthony Joshua exposing Daniel Dubois or a major referee controversy shaking the boxing world. Fans and the public should await any official developments or statements from credible sports news outlets before drawing conclusions.