Jenkins Scriptler Plugin 342.v6a_89fd40f466 and earlier does not restrict a file name query parameter in an HTTP endpoint, allowing attackers with Scriptler/Configure permission to delete arbitrary files on the Jenkins controller file system.
A missing permission check in Jenkins Scriptler Plugin 342.v6a_89fd40f466 and earlier allows attackers with Overall/Read permission to read the contents of a Groovy script by knowing its ID.
Jenkins Scriptler Plugin 3.3 and earlier does not escape the name of scripts on the UI when asking to confirm their deletion, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by exploitable by attackers able to create Scriptler scripts.