CVE-2022-43409 is a high-severity (CVSS 8) Cross-site Scripting (XSS) vulnerability in org.jenkins-ci.plugins.workflow:workflow-support. A fix is available for org.jenkins-ci.plugins.workflow:workflow-support — see the affected versions and patch details below.
Stored XSS vulnerability in Jenkins Pipeline: Supporting APIs Plugin
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2022-43409.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2022-43409 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 377,166 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
org.jenkins-ci.plugins.workflow:workflow-supportReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
Pipeline: Supporting APIs Plugin provides a feature to add hyperlinks, that send POST requests when clicked, to build logs. These links are used by Pipeline: Input Step Plugin to allow users to proceed or abort the build, or by Pipeline: Job Plugin to allow users to forcibly terminate the build after aborting it.
Pipeline: Supporting APIs Plugin 838.va_3a_087b_4055b and earlier does not sanitize or properly encode URLs of these hyperlinks in build logs.
This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to create Pipelines.
Pipeline: Supporting APIs Plugin 839.v35e2736cfd5c properly encodes URLs of these hyperlinks in build logs.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.jenkins-ci.plugins.workflow:workflow-support | all versions | 839.v35e2736cfd5corg.jenkins-ci.plugins.workflow:workflow-support:839.v35e2736cfd5c |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jenkins-ci.plugins.workflow:workflow-support, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.jenkins-ci.plugins.workflow:workflow-support to 839.v35e2736cfd5c or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-43409 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2022-43409 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2022-43409. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
| Product | Fixed in | Advisory |
|---|---|---|
| OCP-Tools-4.12-RHEL-8 | jenkins-2-plugins-0:4.12.1675702407-1.el8 | RHSA-2023:1064 |
| OpenShift Developer Tools and Services for OCP 4.11 | jenkins-2-plugins-0:4.11.1683009941-1.el8 | RHSA-2023:3198 |
| Red Hat OpenShift Container Platform 4.10 | jenkins-2-plugins-0:4.10.1675144701-1.el8 | RHSA-2023:0560 |
| Red Hat OpenShift Container Platform 4.9 | jenkins-2-plugins-0:4.9.1675668922-1.el8 | RHSA-2023:0777 |
Frequently Asked Questions
Is CVE-2022-43409 in your dependencies?
O3 Security finds CVE-2022-43409 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.