Server Side Includes provide a method of dynamically generating web pages through the
insertion of server-side code. However, the technology is also deprecated and
introduces significant security concerns.
If this functionality is unnecessary, comment out the related module:
#LoadModule include_module modules/mod_include.so
If there is a critical need for Server Side Includes, they should be enabled with the
option IncludesNoExec to prevent arbitrary code execution. Additionally, user
supplied data should be encoded to prevent cross-site scripting vulnerabilities.