A cross-site scripting vulnerability exists in Jenkins Blue Ocean Plugins 1.10.1 and earlier that allows attackers with permission to edit a user's description in Jenkins to have Blue Ocean render arbitrary HTML when using it as that user. This vulnerability is found in: - blueocean-commons/src/main/java/io/jenkins/blueocean/commons/stapler/Export.java - blueocean-commons/src/main/java/io/jenkins/blueocean/commons/stapler/export/ExportConfig.java - blueocean-commons/src/main/java/io/jenkins/blueocean/commons/stapler/export/JSONDataWriter.java - blueocean-rest-impl/src/main/java/io/jenkins/blueocean/service/embedded/UserStatePreloader.java - blueocean-web/src/main/resources/io/jenkins/blueocean/PageStatePreloadDecorator/header.jelly

A data modification vulnerability exists in Jenkins Blue Ocean Plugins 1.10.1 and earlier in blueocean-core-js/src/js/bundleStartup.js, blueocean-core-js/src/js/fetch.ts, blueocean-core-js/src/js/i18n/i18n.js, blueocean-core-js/src/js/urlconfig.js, blueocean-rest/src/main/java/io/jenkins/blueocean/rest/APICrumbExclusion.java, blueocean-web/src/main/java/io/jenkins/blueocean/BlueOceanUI.java, blueocean-web/src/main/resources/io/jenkins/blueocean/BlueOceanUI/index.jelly that allows attackers to bypass all cross-site request forgery protection in Blue Ocean API.