The Nearby Now Reviews plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'data_tech' parameter of the nn-tech shortcode in all versions up to, and including, 5.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
https://plugins.trac.wordpress.org/browser/nearby-now-reviews/trunk/nn-reviews.php#L160
https://plugins.trac.wordpress.org/browser/nearby-now-reviews/tags/5.2/nn-reviews.php#L160