Description
Jenkins Active Choices Plugin 2.4 and earlier does not escape some return values of sandboxed scripts for Reactive Reference Parameters, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.
Remediation
References
https://www.jenkins.io/security/advisory/2020-10-08/#SECURITY-2008
http://www.openwall.com/lists/oss-security/2020/10/08/5