Bulletin Announcements < 3.12 - Reflected Cross-Site Scripting

Description

The plugin is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg and remove_query_arg without appropriate escaping on the URL. 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.