CVE-2020-2190 Improper Neutralization of Input During Web Page Generation in Jenkins Script Security Plugin

What is CVE-2020-2190?

CVE-2020-2190 is a medium-severity cross-site scripting vulnerability in Jenkins Script Security Plugin, published on 3 Jun 2020. 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 Script Security Plugin 1.72 and earlier does not correctly escape pending or approved classpath entries on the In-process Script Approval page, resulting in a stored cross-site scripting vulnerability.

Weakness: CWE-79

Which versions are affected by CVE-2020-2190?

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

Products include Jenkins Script Security.

How do I fix CVE-2020-2190?

Upgrade org.jenkins-ci.plugins:script-security to 1.73 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-2020-2190 being exploited?

There is no known exploitation of CVE-2020-2190 in the wild and no public exploit code.

Other vulnerabilities in Jenkins Script Security Plugin

• CVE-2019-1003029 Jenkins Script Security Plugin Sandbox Bypass Exploited Critical 9.9
• CVE-2022-43401 Sandbox bypass vulnerabilities in Jenkins Script Security Plugin and in Pipeline: Groovy Plugin Critical 9.9
• CVE-2022-43403 Jenkins Script Security Plugin sandbox bypass vulnerability Critical 9.9
• CVE-2022-43404 Sandbox bypass vulnerabilities in Jenkins Script Security Plugin and in Pipeline: Groovy Plugin Critical 9.9
• CVE-2020-2279 Sandbox bypass vulnerability in Jenkins Script Security Plugin Critical 9.9

Sources

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

Also known as GHSA-q87g-7mp5-765q, RHSA-2020:3207.