Still, Apple will replace said chargers for free and will provide the affected users with redesigned adapters. The replacements come with the A1400 model name and the "CE" letters are only outlined in gray. In order to exchange a faulty adapter for a safe one, you need to take it to an Apple Retail Store or an authorized Apple Service Provider. Your iPhone serial number will have to be verified, too.
Apple says that the A1300 has been on the shelves in Albania, Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Egypt, Finland, France, Germany, Greece, Hungary, India, Indonesia, Israel, Italy, Latvia, Lithuania, Luxembourg, Macedonia, Moldova, Montenegro, the Netherlands, Norway, Poland, Portugal, Romania, Russia, Slovakia, Slovenia, South Africa, Spain, Sweden, Switzerland, Turkey, and Vietnam.
Are you among the affected users?
source: Apple via The Verge