Jenkins and Jenkins Plugin are both Jenkins open source products.Jenkins is an application. Jenkins Plugin is an application that provides hundreds of plugins to support building, deploying, and automating any project. a cross-site scripting vulnerability exists in Jenkins Maven Metadata for CI server Plugin version 2.1 and earlier. The vulnerability stems from a failure to escape the name and description of the List maven artifact versions parameter on the view where the parameter is displayed, which can be exploited by an attacker to execute JavaScript code on the client side.