It contains none of the "exclusive" documents which it claims substantiate its smears, relying solely on vague unsubstantiated assertions and easily debunked lies to paint the WikiLeaks founder in a negative light.
And let's be clear right off the bat, it is most certainly a smear piece. The article, titled "Exclusive: Security reports reveal how Assange turned an embassy into a command post for election meddling", admits that it exists for the sole purpose of tarnishing Assange's reputation when it reports, with no evidence whatsoever, that while at the Ecuadorian embassy Assange once "smeared feces on the walls out of anger." Not "reportedly". Not "the Ecuadorian government claims." CNN reported it as a fact, as an event that is known to have happened. This is journalistic malpractice, and it isn't an accident.
Whenever you see any "news" report citing this claim, you are witnessing a standard smear tactic of the plutocratic media. Whenever you see them citing this claim as a concrete, verified fact, you are witnessing an especially aggressive and deliberate psyop. The Ecuadorian embassy was easily the most-surveilled building in the world during Assange's stay there, and the Ecuadorian government has leaked photos of Assange's living quarters to the media in an attempt to paint him as a messy houseguest in need of eviction, so if the "feces on the walls" event had ever transpired you would have seen photos of it, whether you wanted to or not. It never happened.