How severe is CVE-2022-43420?

CVE-2022-43420 has a CVSS score of 5.4/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

How do I fix CVE-2022-43420?

Update org.jenkins-ci.plugins:contrast-continuous-application-security to 3.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-43420 is resolved across your whole dependency graph.

How do I mitigate CVE-2022-43420 if there is no patch (or I can't update yet)?

Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Is CVE-2022-43420 actively exploited in the wild?

No public exploit code has been indexed for CVE-2022-43420 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2022-43420?

CVE-2022-43420 has an EPSS (Exploit Prediction Scoring System) score of 0.8%, placing it in the 56th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2022-43420?

CVE-2022-43420 is classified as Cross-site Scripting (XSS) (CWE-79). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was CVE-2022-43420 published, and has it been updated?

CVE-2022-43420 was published on October 19, 2022 and was last updated on October 24, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

Not in CISA KEV

MEDIUM severity

CVE-2022-43420 — contrast-continuous-appli…

MEDIUMFix: jenkinsci/contrast-continuous-application-security-plugin@1babcd1

CVE-2022-43420 is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in org.jenkins-ci.plugins:contrast-continuous-application-security. A fix is available for org.jenkins-ci.plugins:contrast-continuous-application-security — see the affected versions and patch details below.

Stored XSS vulnerability in Jenkins Contrast Continuous Application Security Plugin

Also known asGHSA-hvcr-927w-qcvq

Published

Oct 19, 2022

Updated

Oct 24, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

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-2022-43420.

EPSS Exploitation Probability

via FIRST.org ↗

0.8%probability of exploitation in next 30 days

Lower Risk+0.00%

Lower risk than most CVEs56th percentile — riskier than 56% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

☕org.jenkins-ci.plugins:contrast-continuous-application-security

Real-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

Contrast Continuous Application Security Plugin 3.9 and earlier does not escape data returned from the Contrast service when generating a report.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control or modify Contrast service API responses.

Contrast Continuous Application Security Plugin 3.10 escapes the affected data.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.jenkins-ci.plugins:contrast-continuous-application-security`	all versions	3.10`org.jenkins-ci.plugins:contrast-continuous-application-security:3.10`

Affected Products

1 product · 1 configurations

Application

contrast continuous application securityjenkins

< 3.10

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jenkins-ci.plugins:contrast-continuous-application-security, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.jenkins-ci.plugins:contrast-continuous-application-security to 3.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-43420 is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

Contrast Continuous Application Security Plugin 3.9 and earlier does not escape data returned from the Contrast service when generating a report. This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control or modify Contrast service API responses. Contrast Continuous Application Security Plugin 3.10 escapes the affected data.

O3 Security · Impact-Aware SCA

Is CVE-2022-43420 in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

5.4/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CWE Classification

CWE-79Cross-site Scripting (XSS)

Weaponization

No Nuclei template, Metasploit module or public proof-of-concept found.

Timeline

Disclosed

Oct 19, 2022

Last updated

Oct 24, 2026

Identifiers

CVE-2022-43420

GHSA-hvcr-927w-qcvq

References

Advisoryopenwall.com Advisoryjenkins.io · 2022 10 19 Advisorynvd.nist.gov · CVE 2022 43420 Webgithub.com · 1babcd1e972a265527af12a9f85393d08937859c Packagegithub.com · contrast continuous application security plugin

Related vulnerabilities

Also affects contrast-continuous-application-security

This CVE is medium severity, in line with the other 3 CVEs affecting contrast-continuous-application-security.

CVE-2026-57298CVE-2026-57299CVE-2026-57297

Same weakness: CWE-79

This CVE is medium severity; 5 of 5 other CVEs with CWE-79 are rated as high or higher (top: critical).

CVE-2026-55649CVE-2026-113787CVE-2026-44267CVE-2026-96632CVE-2026-9086Browse all CWE-79

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedOct 24, 2026