I made an update package that gives you Root Privileges without SuperUser, You can check it here: Root w/o Superuser, But you will need CWM recovery to install it because I made it myself meaning it has no signature...
If you tried it, Please reply if it works, Not working or Bricked your device, I already added Unroot packages on the post so no worries if your phone gets bricked, But also you must have your original update package if you want to root your phone again
Tested with:
Samsung Galaxy Pocket Plus S5301 : Working
StarMobile Sky : Not working hmmm...