CVE-2021-21680
XXE vulnerability in Jenkins Nested View Plugin
7.1
HIGH
CVSS 3.1
EPSS 0.17%
Description
Jenkins Nested View Plugin 1.20 and earlier does not configure its XML transformer to prevent XML external entity (XXE) attacks. This allows attackers able to configure views to have Jenkins parse a crafted view XML definition that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery. Jenkins Nested View Plugin 1.21 disables external entity resolution for its XML transformer.
How to fix CVE-2021-21680
To remediate CVE-2021-21680, upgrade the affected package to a fixed version below.
- —upgrade to 1.21 or later
Is CVE-2021-21680 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.21
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |