CVE-2019-10395 Jenkins Build Environment Plugin vulnerable to Cross-site Scripting
Cross-site scripting in Jenkins Build Environment Plugin allows attackers to execute scripts via unescaped variables in job views.
- 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-2019-10395?
CVE-2019-10395 is a medium-severity cross-site scripting vulnerability in Jenkins Build Environment Plugin, published on 12 Sep 2019. 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 Build Environment Plugin 1.6 and earlier did not escape variables shown on its views, resulting in a cross-site scripting vulnerability in Jenkins 2.145, 2.138.1, or older, exploitable by users able to change various job/build properties.
Weakness: CWE-79
Which versions are affected by CVE-2019-10395?
2 open source packages ship an affected version, including org.jenkins-ci.plugins:build-environment. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.jenkins-ci.plugins:build-environment Maven | All versions | 1.7 |
org.jenkins-ci.plugins:build-environment Maven | All versions | 1.7 |
Products include Jenkins Build Environment.
How do I fix CVE-2019-10395?
Upgrade org.jenkins-ci.plugins:build-environment to 1.7 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-2019-10395 being exploited?
There is no known exploitation of CVE-2019-10395 in the wild and no public exploit code.
Sources
Also known as GHSA-88qj-3q6h-8m5q.