Cookielay <= 1.2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via cookielay Shortcode

The Cookielay plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's cookielay shortcode in all versions up to, and including, 1.2.0 due to insufficient input sanitization and output escaping on user supplied attributes. 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.