Password Complexity Not Enforced On Password Change

How it was found

Hi!

Owncloud does not enforce password complexity on password change, so it's possible to use passwords of any size or form.

In example I can set my password to be "a" or "qwerty".

How to reproduce: Change your password to something that does not match your required complexity.

Proof Of Concept: Login with my dummy account account --> "[email protected]" password --> "q"

Thanks! WdeM