XXE vulnerability in Jenkins Klocwork Analysis Plugin

MEDIUM 6.5CVE-2020-2247 · GHSA-p6c5-737r-2r93 · Published 01/09/2020 · updated 17/06/2026

In short

CVE-2020-2247 is a MEDIUM (CVSS 6.5) vulnerability affecting org.jenkins-ci.plugins:klocwork, klocwork analysis (jenkins).
Chance of exploitation in the next 30 days (EPSS): 0.82%, higher than 57.3% of all vulnerabilities.
Fix: update to 2020.3.1 or later.

Package	Affected versions	Patched versions
org.jenkins-ci.plugins:klocwork Maven	`< 2020.3.1`	`2020.3.1`
klocwork analysis jenkins	`≤ 2020.2.1`	No fix yet

Description

Klocwork Analysis Plugin 2020.2.1 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

This allows a user able to control the input files for the Klocwork plugin parser to have Jenkins parse a crafted file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.

NVD description

Jenkins Klocwork Analysis Plugin 2020.2.1 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

References

nvd.nist.gov/vuln/detail/CVE-2020-2247 · ADVISORY
jenkinsci/klocwork-plugin · PACKAGE
jenkins.io/security/advisory/2020-09-01 · WEB
openwall.com/lists/oss-security/2020/09/01/3 · WEB

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