CVE-2021-21648: Jenkins Credentials

Medium severity, CVSS 6.1. EPSS: 11.3% chance of exploitation in the next 30 days.

Jenkins Credentials Plugin 2.3.18 and earlier does not escape user-controlled information on a view it provides, resulting in a reflected cross-site scripting (XSS) vulnerability.

Affected products

• Jenkins Credentials: up to and including 2.3.18

Published 2021-05-11. Last modified 2026-06-17.