Description
jenkins-email-ext before version 2.57.1 is vulnerable to an Information Exposure. The Email Extension Plugins is able to send emails to a dynamically created list of users based on the changelogs, like authors of SCM changes since the last successful build. This could in some cases result in emails being sent to people who have no user account in Jenkins, and in rare cases even people who were not involved in whatever project was being built, due to some mapping based on the local-part of email addresses.
Remediation
References
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2654
https://jenkins.io/security/advisory/2017-03-20/
Related Vulnerabilities
CVE-2022-2256 Vulnerability in maven package org.keycloak:keycloak-themes
CVE-2019-1003056 Vulnerability in maven package org.jenkins-ci.plugins:websphere-deployer
CVE-2019-13173 Vulnerability in maven package org.webjars:fstream
CVE-2013-2165 Vulnerability in maven package org.richfaces.framework:richfaces-impl