Input validation vulnerability in Contact Form, Survey & Form Builder – MightyForms 1.3.9

The MightyForms plugin for WordPress, which includes a contact form, survey, and form builder, has a security issue that could allow hackers to insert harmful code into a website. This vulnerability affects all versions up to 1.3.9 and is caused by not properly filtering and protecting user-submitted information. This means that someone with contributor-level or higher access could potentially add malicious code to a page, which would run whenever someone visits that page.