CVE-2020-2248 Reflected XSS vulnerability in Jenkins JSGames Plugin

Medium 6.1 Published Updated

Attackers can execute arbitrary scripts in victim browsers via reflected XSS in the Jenkins JSGames Plugin, potentially leading to session hijacking.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2020-2248?

CVE-2020-2248 is a medium-severity cross-site scripting vulnerability in Jenkins JSGames Plugin, published on 1 Sep 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Jenkins JSGames Plugin 0.2 and earlier evaluates part of a URL as code, resulting in a reflected cross-site scripting (XSS) vulnerability.

Weakness: CWE-79

Which versions are affected by CVE-2020-2248?

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

PackageAffectedFixed in
org.jenkins-ci.plugins:jsgames MavenAll versions to 0.2None
org.jenkins-ci.plugins:jsgames MavenAll versions to 0.2None

Products include Jenkins Jsgames.

How do I fix CVE-2020-2248?

No fix has been published for CVE-2020-2248 yet. Limit exposure of the affected software until one is available.

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-2020-2248 being exploited?

There is no known exploitation of CVE-2020-2248 in the wild and no public exploit code.

Sources

Also known as GHSA-7hf3-h28p-q6gx.

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