CVE-2021-21616: Jenkins Active Choices

Medium severity, CVSS 4.6. EPSS: 76.2% chance of exploitation in the next 30 days.

Jenkins Active Choices Plugin 2.5.2 and earlier does not escape reference parameter values, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.

Affected products

• Jenkins Active Choices: up to and including 2.5.2

Published 2021-02-24. Last modified 2026-06-17.