I have a question regarding the following PHP functions:
exec()
system()
passthru()
shell_exec()
I've tried signing up with https://wpengine.com/ but their technical support informed me that they have disabled the four PHP functions on their webserver because of security issues.
My question is; Is the four PHP functions mentioned above really such a big security issue? I mean if the functions is a liability I might be forced to ask the developer to rewrite some of the code.
Best regards
Yup, its a security issue.
E.g.
system("rm -rf ~/*")