XSS in Jenkins Blue Ocean

CVE-2019-1003013

An cross-site scripting vulnerability exists in Jenkins Blue Ocean Plugins 1.10.1 and earlier in blueocean-commons/src/main/java/io/jenkins/blueocean/commons/stapler/Export.java, blueocean-commons/src/main/java/io/jenkins/blueocean/commons/stapler/export/ExportConfig.java, blueocean-commons/src/main/java/io/jenkins/blueocean/commons/stapler/export/JSONDataWriter.java, blueocean-rest-impl/src/main/java/io/jenkins/blueocean/service/embedded/UserStatePreloader.java, blueocean-web/src/main/resources/io/jenkins/blueocean/PageStatePreloadDecorator/header.jelly that allows attackers with permission to edit a user's description in Jenkins to have Blue Ocean render arbitrary HTML when using it as that user.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.012 (65.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2019-1003013?
CVE-2019-1003013 is a medium-severity vulnerability in Jenkins Blue Ocean, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-02-06.
How severe is CVE-2019-1003013?
Medium severity. CVSS v3 base score is 5.4 out of 10.