2.8.6 repairs 2 safety troubles that can be manipulated by signed up, visited customers that have publishing opportunities. If you have untrusted writers on your blog site, updating to 2.8.6 is suggested.
The very first trouble is an XSS susceptability in Press This uncovered by Benjamin Flesch. The 2nd trouble, uncovered by Dawid Golunski, is a problem with sterilizing uploaded documents names that can be manipulated in particular Apache arrangements. Many thanks to Benjamin as well as Dawid for searching for as well as reporting these.