CppCMS

CppCMS is an open-source web application framework for the C++ programming language developed by Artyom Beilis. It is one of the very few web frameworks for C++. The primary goal of CppCMS is building performance-demanding web applications. It may also be used for embedded web applications for consumer devices (such as administration consoles for routers, or smart devices). The library is available under MIT license. It currently targets POSIX-compatible platforms as well as Microsoft Windows.
Despite what the name suggests, it is not a content management system.