The Go Pricing - WordPress Responsive Pricing Tables plugin for WordPress is vulnerable to Stored Cross-Site Scripting via shortcodes in versions up to, and including, 3.3.19 due to insufficient input sanitization and output escaping. This makes it possible for contributor-level attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
https://codecanyon.net/item/go-pricing-wordpress-responsive-pricing-tables/3725820