CVE-2021-21699
Jenkins Active Choices Plugin 2.5.6 and earlier does not escape the parameter name of reactive parameters and dynamic reference parameters, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.
Date published : 2021-11-12
https://www.jenkins.io/security/advisory/2021-11-12/#SECURITY-2219