The Bible SuperSearch plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘selector_height’ parameter in all versions up to, and including, 6.0.1 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://wordpress.org/plugins/biblesupersearch/#developers
https://plugins.trac.wordpress.org/changeset/3345278/
https://plugins.trac.wordpress.org/browser/biblesupersearch/trunk/wp/class.shortcodes.php#L270