Yesterday news came out that the single most popular third-party piece of SEO software was vulnerable to a serious blind SQL injection attack. Yoast’s WordPress SEO plugin that is reportedly used by 14 million SEO blogs was vulnerable.

Joost de Valk from Yoast announced last night that because of the seriousness of the exploit, WordPress worked with him to automatically push updates to those using his plugin. He said:

Either way, if you are using WordPress and Yoast, you should check to make sure you are on the latest version. Now that this exploit is out there, you don’t want people to jump on it.

Forum discussion at WebmasterWorld and Twitter.