The Beaver Themer plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.4.9 via the 'wpbb' shortcode. This makes it possible for authenticated attackers, with contributor access and above, to extract sensitive data including arbitrary user_meta values.

The Beaver Themer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcode(s) in all versions up to, and including, 1.4.9 due to insufficient input sanitization and output escaping on user supplied custom fields. 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.

In Beaver Themer, attackers can bypass conditional logic controls (for hiding content) when viewing the post archives. Exploitation requires that a Themer layout is applied to the archives, and that the post excerpt field is not set.