Plug Project Plug vulnerabilities

• plug project plug Header Injection CVE-2018-1000883 Fix available 6.5 MediumDecember 20, 2018
• plug project plug Arbitrary Code Execution in Cookie Serialization CVE-2017-1000053 Fix available 8.1 HighJuly 13, 2017
• plug project plug Null Byte Injection in Plug.Static CVE-2017-1000052 Fix available 7.8 HighJuly 13, 2017