CVE-2021-21680 XXE vulnerability in Jenkins Nested View Plugin

High 7.1 Published Updated

Attackers can exploit XML external entity vulnerabilities in the Jenkins Nested View Plugin to read sensitive files or cause denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2021-21680?

CVE-2021-21680 is a high-severity vulnerability in Jenkins Nested View Plugin, published on 31 Aug 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Jenkins Nested View Plugin 1.20 and earlier does not configure its XML transformer to prevent XML external entity (XXE) attacks.

Weakness: CWE-611

Which versions are affected by CVE-2021-21680?

2 open source packages ship an affected version, including org.jenkins-ci.plugins:nested-view. It affects 1 product.

PackageAffectedFixed in
org.jenkins-ci.plugins:nested-view MavenAll versions1.21
org.jenkins-ci.plugins:nested-view MavenAll versions1.21

Products include Jenkins Nested View.

How do I fix CVE-2021-21680?

Upgrade org.jenkins-ci.plugins:nested-view to 1.21 or later.

Is CVE-2021-21680 being exploited?

There is no known exploitation of CVE-2021-21680 in the wild and no public exploit code.

Sources

Also known as GHSA-5wc4-w63v-97c3.

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