That’s why we were alarmed when security firm WordFence found XSS vulnerabilities in another SEO plugin. After carefully reviewing the issues, we found a similar but less severe vulnerability in Yoast SEO, which we chose to patch immediately. If this applies to you, you should update your Yoast SEO plugin immediately. We also thoroughly reviewed parts of Yoast SEO and found no other security issues present. Thanks to this fix, Yoast SEO is now more secure than ever.