Many WordPress users go crazy with the implementation of plugins and they don’t realize that each plugging is a window to a vulnerability that can be exploited by hackers. This is one of the reasons why we consider that everyone who uses WordPress should be careful in regards to the kind of plugins they use.
You should always do a search in regards to the kind of vulnerabilities and the safety of every plugin you get. The WordPress community is quite active, so you could easily get guidance for this purpose.