Many, but not neccessarily all rules are active by default.
In the Rules tab of your organization, I suggest filtering down to the Quality Profile you’re interested in as well as a Security Category (like A1), and toggle between active/inactive rules.
I think that’s a safe statement, although by no means are we certifying that all rules that could ever fall under Owasp Top 10 or CWE Top 25 are present by default (maybe we haven’t developed them yet!)