CVE-2018-1000202: Jenkins Groovy Postbuild

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

A persisted cross-site scripting vulnerability exists in Jenkins Groovy Postbuild Plugin 2.3.1 and older in various Jelly files that allows attackers able to control build badge content to define JavaScript that would be executed in another user's browser when that other user performs some UI actions.

Affected products

• Jenkins Groovy Postbuild: up to and including 2.3.1

Published 2018-06-05. Last modified 2026-06-17.