SiteOrigin Widgets Bundle <= 1.68.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via `data-url` DOM Element Attribute

The SiteOrigin Widgets Bundle plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `data-url` DOM Element Attribute in all versions up to, and including, 1.68.4 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.