CVE-2020-2259 Stored XSS vulnerability in computer-queue-plugin Plugin
Stored XSS in Jenkins computer-queue-plugin allows attackers with Agent/Configure permission to execute scripts in victim browsers.
- 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-2020-2259?
CVE-2020-2259 is a medium-severity cross-site scripting vulnerability in Jenkins computer-queue-plugin Plugin, published on 16 Sep 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 computer-queue-plugin Plugin 1.5 and earlier does not escape the agent name in tooltips, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Agent/Configure permission.
Weakness: CWE-79
Which versions are affected by CVE-2020-2259?
2 open source packages ship an affected version, including jenkins.ci.plugins.computerqueue:computer-queue-plugin. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
jenkins.ci.plugins.computerqueue:computer-queue-plugin Maven | All versions | 1.6 |
jenkins.ci.plugins.computerqueue:computer-queue-plugin Maven | All versions | 1.6 |
Products include Jenkins Computer Queue.
How do I fix CVE-2020-2259?
Upgrade jenkins.ci.plugins.computerqueue:computer-queue-plugin to 1.6 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-2020-2259 being exploited?
There is no known exploitation of CVE-2020-2259 in the wild and no public exploit code.
Sources
Also known as GHSA-qg66-xv7v-m834.