Sphere Manager <= 1.0.2 - Authenticated (Contributor+) Cross-Site Scripting via 'width' Shortcode Attribute

The Sphere Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'width' parameter in the 'show_sphere_image' shortcode in all versions up to, and including, 1.0.2 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.