Veronalabs WP Statistics – Simple, privacy-friendly Google Analytics alternative vulnerabilities

The WP Statistics – Simple, privacy-friendly Google Analytics alternative plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via REQUEST_URI Query-Parameter Key in all versions up to, and including, 14.16.14 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

The WP Statistics plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 14.16.4. This is due to missing capability checks on multiple AJAX handlers including `wp_statistics_get_filters`, `wp_statistics_getPrivacyStatus`, `wp_statistics_updatePrivacyStatus`, and `wp_statistics_dismiss_notices`. These endpoints only verify a `wp_rest` nonce via `check_ajax_referer()` but do not enforce any capability checks such as `current_user_can()` or the plugin's own `User::Access()` method. Since the `wp_rest` nonce is available to all authenticated WordPress users, this makes it possible for authenticated attackers, with Subscriber-level access and above, to access sensitive analytics data (user IDs, usernames, emails, visitor tracking data), retrieve and modify privacy audit compliance status, and dismiss administrative notices.