How severe is CVE-2025-23366?

CVE-2025-23366 has a CVSS score of 6.5/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2025-23366?

CVE-2025-23366 affects the following packages: org.jboss.hal:hal-console (Maven). Ecosystems affected: Maven.

How do I fix CVE-2025-23366?

Update org.jboss.hal:hal-console to 3.7.7.Final or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-23366 is resolved across your whole dependency graph.

How do I detect CVE-2025-23366 in my Maven dependencies?

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

How do I mitigate CVE-2025-23366 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-2025-23366 actively exploited in the wild?

No public exploit code has been indexed for CVE-2025-23366 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-2025-23366?

CVE-2025-23366 has an EPSS (Exploit Prediction Scoring System) score of 0.5%, placing it in the 40th 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-2025-23366?

CVE-2025-23366 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-2025-23366 published, and has it been updated?

CVE-2025-23366 was published on January 14, 2025 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-2025-23366 — hal-console

MEDIUM

CVE-2025-23366 is a medium-severity (CVSS 6.5) Cross-site Scripting (XSS) vulnerability in org.jboss.hal:hal-console. A fix is available for org.jboss.hal:hal-console — see the affected versions and patch details below.

Org.jboss.hal:hal-console: wildfly hal console cross-site scripting

Also known asGHSA-jhvj-f397-8w6q

Published

Jan 14, 2025

Updated

Oct 28, 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

A successful exploit gives an attacker total control of the affected component, not partial access.
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-2025-23366.

EPSS Exploitation Probability

via FIRST.org ↗

0.5%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs40th percentile — riskier than 40% 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.jboss.hal:hal-console

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

Impact

Cross-site scripting (XSS) vulnerability in the management console.

Patches

Fixed in HAL 3.7.7.Final

Workarounds

No workaround available

References

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.jboss.hal:hal-console`	all versions	3.7.7.Final`org.jboss.hal:hal-console:3.7.7.Final`

Affected Products

1 product · 1 configurations

Application

hal management consoleredhat

< 3.7.7

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.jboss.hal:hal-console, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.jboss.hal:hal-console to 3.7.7.Final or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-23366 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.

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.

Red HatModerate

Red Hat has evaluated and the attacker must be authenticated as user that belongs to management groups “SuperUser”, “Admin”, or “Maintainer”. This issue requires previous privilege to jeopardize an environment.

RHSA-2025:10931Red Hat JBoss Enterprise Application Platform 7

Frequently Asked Questions

A flaw was found in the HAL Console in the Wildfly component, which does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output used as a web page that is served to other users. The attacker must be authenticated as a user that belongs to management groups “SuperUser”, “Admin”, or “Maintainer”. ### Impact Cross-site scripting (XSS) vulnerability in the management console. ### Patches Fixed in [HAL 3.7.7.Final](https://github.com/hal/console/releases/tag/v3.7.7) ### Workarounds No workaround available ### References - https://access.redhat.com/secur