CVE-2021-21642
XML External Entity Reference vulnerability in Jenkins Config File Provider Plugin
8.1
HIGH
CVSS 3.1
EPSS 0.30%
Description
Jenkins Config File Provider Plugin 3.7.0 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks. This allows attackers with the ability to define Maven configuration files to have Jenkins parse a crafted configuration file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery. Jenkins Config File Provider Plugin 3.7.1 disables external entity resolution for its XML parser.
How to fix CVE-2021-21642
To remediate CVE-2021-21642, upgrade the affected package to a fixed version below.
- —upgrade to 3.7.1 or later
Is CVE-2021-21642 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.7.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |