The WP Statistics plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the URL search parameter in all versions up to, and including, 14.5 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The WP Statistics – The Most Popular Privacy-Friendly Analytics Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the User-Agent Header in all versions up to, and including, 14.5.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The WP Statistics – The Most Popular Privacy-Friendly Analytics Plugin plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'optionUpdater' function in all versions up to, and including, 14.13.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update arbitrary plugin settings.

Cross-site scripting vulnerability in WP Statistics version 12.0.4 and earlier allows remote attackers to inject arbitrary web script or HTML via specially crafted HTTP Referer headers.