Input validation vulnerability in BestWebSoft's Twitter 1.3.2

The BestWebSoft’s Twitter plugin for WordPress is vulnerable to malicious code being stored by an administrator with special permissions. This malicious code is known as Stored Cross-Site Scripting, and can be used to inject a web script into pages. This code will be executed whenever a user visits the page. This vulnerability only affects websites running multiple sites or with a security setting called unfiltered_html disabled.