CVE-2023-25762 Cross-site Scripting in Jenkins Pipeline: Build Step Plugin

Medium 5.4 Published Updated

Stored XSS in Jenkins Pipeline Build Step Plugin allows attackers controlling job names to execute scripts in the Snippet Generator.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2023-25762?

CVE-2023-25762 is a medium-severity cross-site scripting vulnerability in Jenkins Pipeline: Build Step Plugin, published on 15 Feb 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Jenkins Pipeline: Build Step Plugin 2.18 and earlier does not escape job names in a JavaScript expression used in the Pipeline Snippet Generator, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control job names.

Weakness: CWE-79

Which versions are affected by CVE-2023-25762?

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

PackageAffectedFixed in
org.jenkins-ci.plugins:pipeline-build-step MavenAll versions2.18.1
org.jenkins-ci.plugins:pipeline-build-step MavenAll versions2.18.1

Products include Jenkins Pipeline\.

How do I fix CVE-2023-25762?

Upgrade org.jenkins-ci.plugins:pipeline-build-step to 2.18.1 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-25762 being exploited?

There is no known exploitation of CVE-2023-25762 in the wild and no public exploit code.

Sources

Also known as GHSA-9j65-3f2q-8q2r.

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