Stellar payments are back online, but Ripple is still offline while we patch our code to ensure we aren't vulnerable. We were previously vulnerable but nobody exploited it and we probably would have caught it fairly quickly if they had. Ripple will be offline at least until tomorrow, but hopefully not much longer than that.
The Ripple gateway is patched and back online now too. If you had a pending XRP withdrawal, it should have been cancelled. But new XRP withdrawal requests should be working fine now.