Description
A sandbox bypass vulnerability exists in Jenkins Script Security Plugin 1.52 and earlier in RejectASTTransformsCustomizer.java that allows attackers with Overall/Read permission to provide a Groovy script to an HTTP endpoint that can result in arbitrary code execution on the Jenkins master JVM.
Remediation
References
http://www.securityfocus.com/bid/107295
https://access.redhat.com/errata/RHSA-2019:0739
https://jenkins.io/security/advisory/2019-02-19/#SECURITY-1320