How severe is CVE-2022-42466?

CVE-2022-42466 has a CVSS score of 6.1/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2022-42466?

CVE-2022-42466 affects the following packages: org.apache.isis.core:isis-core (Maven). Ecosystems affected: Maven.

How do I fix CVE-2022-42466?

Update org.apache.isis.core:isis-core to 2.0.0-M9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-42466 is resolved across your whole dependency graph.

How do I detect CVE-2022-42466 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.isis.core:isis-core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2022-42466 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-2022-42466 actively exploited in the wild?

No public exploit code has been indexed for CVE-2022-42466 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-2022-42466?

CVE-2022-42466 has an EPSS (Exploit Prediction Scoring System) score of 1.4%, placing it in the 73th 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-2022-42466?

CVE-2022-42466 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-2022-42466 published, and has it been updated?

CVE-2022-42466 was published on October 19, 2022 and was last updated on October 28, 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-2022-42466 — isis-core

MEDIUMFix: apache/isis@30f94df

CVE-2022-42466 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in org.apache.isis.core:isis-core. A fix is available for org.apache.isis.core:isis-core — see the affected versions and patch details below.

XSS vulnerability, eg for String properties.

Also known asGHSA-7pfc-cc9x-8p4m

Published

Oct 19, 2022

Updated

Oct 28, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 3, 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-2022-42466.

EPSS Exploitation Probability

via FIRST.org ↗

1.4%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs73th percentile — riskier than 73% 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.apache.isis.core:isis-core

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

Prior to 2.0.0-M9, it was possible for an end-user to set the value of an editable string property of a domain object to a value that would be rendered unchanged when the value was saved. In particular, the end-user could enter javascript or similar and this would be executed. As of this release, the inputted strings are properly escaped when rendered.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.apache.isis.core:isis-core`	all versions	2.0.0-M9`org.apache.isis.core:isis-core:2.0.0-M9`

Affected Products

1 product · 9 configurations

Application

isisapache

< 2.0.0

1 version

2.0.0

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.isis.core:isis-core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.apache.isis.core:isis-core to 2.0.0-M9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-42466 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

O3 Security · Impact-Aware SCA

Is CVE-2022-42466 in your dependencies?

Find it across Maven, including transitive dependencies.

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