This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
The question doesn't make much sense. Content management systems are software products. Products don't follow a methodology, people do. Whether a given CMS product was built using agile methods, that's a question you could ask.