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 WP Customer Reviews WordPress plugin before 3.7.1 does not validate a parameter allowing contributor and above users to redirect a page to a malicious URL

The WP Customer Reviews plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 3.6.6 via the ajax_enabled_posts function. This can allow authenticated attackers to extract sensitive data such as post titles and slugs, including those of protected and trashed posts and pages in addition to other post types such as galleries.

The WP Customer Reviews plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in versions up to, and including, 3.6.6 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.

The WP Customer Reviews WordPress plugin before 3.5.6 did not sanitise some of its settings, allowing high privilege users such as administrators to set XSS payloads in them which will then be triggered in pages where reviews are enabled

Unvalidated input and lack of output encoding in the WP Customer Reviews WordPress plugin, versions before 3.4.3, lead to multiple Stored Cross-Site Scripting vulnerabilities allowing remote attackers to inject arbitrary JavaScript code or HTML.

The wp-customer-reviews plugin before 3.0.9 for WordPress has XSS in the admin tools.

The wp-customer-reviews plugin before 3.0.9 for WordPress has CSRF in the admin tools.