CVE-2021-21635: Jenkins Rest List Parameter

Medium severity, CVSS 5.4. EPSS: 8.8% chance of exploitation in the next 30 days.

Jenkins REST List Parameter Plugin 1.3.0 and earlier does not escape a parameter name reference in embedded JavaScript, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.

Affected products

• Jenkins Rest List Parameter: up to and including 1.3.0

Published 2021-03-30. Last modified 2026-06-17.