WP FEvents Book <= 0.46 is vulnerable to Subscriber+ Stored XSS vulnerability

The WP FEvents Book plugin for WordPress is vulnerable to Stored Cross-Site Scripting via several parameters in versions up to, and including, 0.46 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.