The Freemius SDK, as used by hundreds of WordPress plugin and theme developers, was vulnerable to Cross-Site Request Forgery and Information disclosure due to missing capability checks and nonce protection on the _get_debug_log, _get_db_option, and the _set_db_option functions in versions up to, and including 2.4.2. Any WordPress plugin or theme running a version of Freemius less than 2.4.3 is vulnerable.

The Auto Amazon Links – Amazon Associates Affiliate Plugin 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, 5.4.2. 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.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Michael Uno (miunosoft) Auto Amazon Links – Amazon Associates Affiliate Plugin allows Stored XSS.This issue affects Auto Amazon Links – Amazon Associates Affiliate Plugin: from n/a through 5.1.1.

The Auto Amazon Links plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the style parameter in versions up to, and including, 5.3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with contributor access to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Amazon Link WordPress plugin through 3.2.10 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Cross-Site Scripting attacks even when unfiltered_html is disallowed.