Not just WordPress. I just registered a new domain and hosting with crazy domains (last night)… I installed Joomla 2.5 from within the cpanel.. Having similar admin issues… It loads but the buttons and menu do nothing. I then checked my other domain which has been running for 2 years and found it was not behaving the same in the admin, in addition the web page was all out of wack, not centered and text all shaded in black. I rang support today, got through after 30 minutes and they were unaware (so they said) that this was an issue with Joomla.. acknowledged there was a problem and would refer to techs… no doubt not working over the weekend as nothing is fixed to date. https://www.budgetit.com.au is my existing site with problems also on front end.. Can’t edit my new domain..
