The Seriously Simple Podcasting plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 3.5.0. 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 Seriously Simple Stats plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 1.6.0. 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 Seriously Simple Podcasting WordPress plugin before 3.3.0 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)
The Seriously Simple Podcasting WordPress plugin before 3.0.0 discloses the Podcast owner's email address (which by default is the admin email address) via an unauthenticated crafted request.
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Castos Seriously Simple Stats allows SQL Injection.This issue affects Seriously Simple Stats: from n/a through 1.5.0.
The Seriously Simple Podcasting WordPress plugin before 2.19.1 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.