CVE-2017-0897

ExpressionEngine version 2.x < 2.11.8 and version 3.x < 3.5.5 create an object signing token with weak entropy. Successfully guessing the token can lead to remote code execution. Date published : 2017-06-22 http://www.securityfocus.com/bid/99242

https://docs.expressionengine.com/latest/about/changelog.html#version-3-5-5