Scriptless Social Sharing < 3.2.2 is vulnerable to Contributor+ Stored XSS vulnerability

The Scriptless Social Sharing plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's class block option in versions up to, and including, 3.2.1 due to insufficient input sanitization and output escaping on the user supplied option. This makes it possible for authenticated attackers with contributor level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.