Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Markus Wiesenhofer Contact Form 7 – Post Fields cf7-post-fields allows Stored XSS.This issue affects Contact Form 7 – Post Fields: from n/a through 2.6.0.
Update the WordPress Contact Form 7 – Post Fields plugin to the latest available version (at least 2.7.1).