CVE-2012-4439 Jenkins allows Cross-Site Scripting (XSS) via Crafted URL

What is CVE-2012-4439?

CVE-2012-4439 is a medium-severity cross-site scripting vulnerability in Jenkins Jenkins, published on 18 Nov 2019. 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

Cross-site Scripting (XSS) in Jenkins main before 1.482 and LTS before 1.466.2 allows remote attackers to inject arbitrary web script or HTML via a crafted URL that points to Jenkins.

Weakness: CWE-79

Which versions are affected by CVE-2012-4439?

4 open source packages ship an affected version, including org.jenkins-ci.main:jenkins-core. It affects 1 product.

Products include Jenkins Jenkins.

How do I fix CVE-2012-4439?

Upgrade org.jenkins-ci.main:jenkins-core to a fixed version for your release line: 1.466.2 or 1.482.

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-2012-4439 being exploited?

There is no known exploitation of CVE-2012-4439 in the wild and no public exploit code.

Other vulnerabilities in Jenkins Jenkins

• CVE-2024-23897 Jenkins Command Line Interface (CLI) Path Traversal Exploited Critical 9.8
• CVE-2018-1000861 Jenkins Stapler Web Framework Deserialization of Untrusted Data Exploited Critical 9.8
• CVE-2017-1000353 Jenkins Remote Code Execution Exploited Critical 9.8
• CVE-2015-5317 Jenkins User Interface (UI) Information Disclosure Exploited High 7.5
• CVE-2021-21690 Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins Critical 9.8

All Jenkins Jenkins vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-x97g-3gp9-cf2p.