Lxicon Bitcoin Donate Button vulnerabilities

The Bitcoin Donate Button plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0. This is due to missing or incorrect nonce validation on the settings page. This makes it possible for unauthenticated attackers to modify the plugin's settings, including donation addresses and display configurations, via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.