The The Drop Shadow Boxes plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 1.7.14. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for authenticated attackers, with Subscriber-level access and above, to execute arbitrary shortcodes.

The Freemius SDK, as used by hundreds of WordPress plugin and theme developers, was vulnerable to Cross-Site Request Forgery and Information disclosure due to missing capability checks and nonce protection on the _get_debug_log, _get_db_option, and the _set_db_option functions in versions up to, and including 2.4.2. Any WordPress plugin or theme running a version of Freemius less than 2.4.3 is vulnerable.

The Drop Shadow Boxes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'dropshadowbox' shortcode in versions up to, and including, 1.7.13 due to insufficient input sanitization and output escaping on user supplied attributes. 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.

Auth. (contributor+) Cross-Site Scripting (XSS) vulnerability in Steven Henty Drop Shadow Boxes plugin <= 1.7.10 versions.