XSS in Jenkins Active Choices

CVE-2017-1000386

Jenkins Active Choices plugin version 1.5.3 and earlier allowed users with Job/Configure permission to provide arbitrary HTML to be shown on the 'Build With Parameters' page through the 'Active Choices Reactive Reference Parameter' type. This could include, for example, arbitrary JavaScript. Active Choices now sanitizes the HTML inserted on the 'Build With Parameters' page if and only if the script is executed in a sandbox. As unsandboxed scripts are subject to administrator approval, it is up to the administrator to allow or disallow problematic script output.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.008 (54.9th 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-2017-1000386?
CVE-2017-1000386 is a medium-severity vulnerability in Jenkins Active Choices, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-01-26.
How severe is CVE-2017-1000386?
Medium severity. CVSS v3 base score is 5.4 out of 10.