Silencesoft RSS Reader <= 0.6 - Cross-Site Request Forgery to RSS Feed Deletion

The Silencesoft RSS Reader plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 0.6. This is due to missing or incorrect nonce validation on the 'sil_rss_edit_page' page. This makes it possible for unauthenticated attackers to delete RSS feeds via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.