These attacks are mainly happening to sites that are affiliated with the opposition or are broadcasting views and news about the current situation, if I'm not mistaken.

Even though this opens discussion about how vulnerable Wordpress and in particular some sites are in terms of their security, it isn't a very widespread thing and people surely shouldn't worry too much.

I run a Kurdish news site and we report on the fighting out there a lot through Wordpress and to be honest this has got me a little worried, but will be trying to keep everything on the site updated.