CSS & JavaScript Toolbox vulnerabilities

The CSS & JavaScript Toolbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's cjtoolbox shortcode in all versions up to, and including, 12.0.6 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.

The CSS & JavaScript Toolbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 12.0.6 via the Assignment Engine fields. This is due to insufficient input sanitization and output escaping on assignment data fields including Expressions, URLs, and Advanced assignment data.

The CSS & JavaScript Toolbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 12.0.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.