As we've said before, lots of our users run WordPress on their websites and its popularity makes it a big target. So when a new vulnerability is discovered, acting quickly is prudent. Jetpack is an extremely popular plugin to provide self-hosted blogs with all of the additional functionality
WordPress Pingback Attacks and our WAF
At CloudFlare a lot of our customers use WordPress, that's why we have our own plugin, we hang out at WordCamp and we wrote a WordPress specific ruleset for our Web Application Firewall. WordPress' ubiquity on the web can make it an ideal target for Layer 7