CVE-2018-1999007: Jenkins

Medium severity, CVSS 5.4. EPSS: 0.9% chance of exploitation in the next 30 days.

A cross-site scripting vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and earlier in the Stapler web framework's org/kohsuke/stapler/Stapler.java that allows attackers with the ability to control the existence of some URLs in Jenkins to define JavaScript that would be executed in another user's browser when that other user views HTTP 404 error pages while Stapler debug mode is enabled.

Affected products

• Jenkins Jenkins: up to and including 2.121.1; from 2.122, up to and including 2.132
• Oracle Communications Cloud Native Core Automated Test Suite: version 1.9.0 only

Published 2018-07-23. Last modified 2026-06-17.