The following critical security issues have occured for Wordpress CMS for which is essential to update to the latest version 4.7.2 and Joomla CMS that you should update to version 3.6.5.
A vulnerability found on the Linux Kernel that permits local unprivileged users to run arbitrary code with administrative privileges. Latest security upgrades should be applied in order to secure systems against possibly attacks.
Network traffic encrypted using an RSA-based SSL certificate may be decrypted if enough SSLv2 handshake data can be collected. Exploitation of this vulnerability—referred to as DROWN in public reporting—may allow a remote attacker to obtain the private key of a server supporting SSLv2.
October 2015 NTP Security Vulnerability Announcement (Medium)
NTF's NTP Project has been notified of 13 low- and medium-severity vulnerabilities that are fixed in ntp-4.2.8p4, released on Wednesday, 21 October 2015