CVE-2021-21668: Jenkins Scriptler

Medium severity, CVSS 5.4. EPSS: 76% chance of exploitation in the next 30 days.

Jenkins Scriptler Plugin 3.1 and earlier does not escape script content, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Scriptler/Configure permission.

Affected products

• Jenkins Scriptler: up to and including 3.1

Published 2021-06-16. Last modified 2026-06-17.