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 Social Sharing Toolkit WordPress plugin through 2.6 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

Cross-site request forgery (CSRF) vulnerability in the Social Sharing Toolkit plugin 2.1.1 for WordPress allows remote attackers to hijack the authentication of administrators for requests that manipulate plugin settings via unknown vectors.

Cross-site scripting (XSS) vulnerability in Social Sharing Toolkit plugin before 2.1.2 for WordPress allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.