Are addons related with each others

Hi! I have an issue what i can solve but solutions don't seen as healthy for SEO so i am explaining my case. I am not familiar with cPanel and its branches so i am not able to technically speak. I work on cPanel by my hosting service and i have set a "automatically wordpress website" when i got this host service, let we call it as xyz.com. Then, i have created second "automatically wordpress website" on cPanel by ready app, let we say this abc.com. They are totally different websites but i know they are sharing same database. - When i look at my server informations on right side, i see that my primary domain is xyz.com - When i look at my addons i see an addon tab shows websites are touching each others :) Something like this. Sub domains: abccom.xyz.com Folder: /abc.com not redirected I think these are not seen correct for SEO or other standards. How can i be sure?