CVE-2021-21700: Jenkins Scriptler

Medium severity, CVSS 5.4. EPSS: 0.7% chance of exploitation in the next 30 days.

Jenkins Scriptler Plugin 3.3 and earlier does not escape the name of scripts on the UI when asking to confirm their deletion, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by exploitable by attackers able to create Scriptler scripts.

Affected products

• Jenkins Scriptler: up to and including 3.3

Published 2021-11-12. Last modified 2026-06-17.