controller-5.cs

public class UserProfileActionFilterAttribute : ActionFilterAttribute
{
    private readonly UserProfile _userProfile;
    
    public UserProfileActionFilterAttribute(UserProfile userProfile)
    {
        _userProfile = userProfile;
    }

    public override void OnActionExecuting(ActionExecutingContext filterContext)	
    {
        filterContext.Controller.ViewBag.User = _userProfile;
    }
}