How severe is CVE-2023-40191?

CVE-2023-40191 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-2023-40191?

CVE-2023-40191 affects the following packages: com.liferay.portal:release.portal.bom (Maven), com.liferay.portal:release.dxp.bom (Maven), com.liferay.portal:release.dxp.bom (Maven). Ecosystems affected: Maven.

How do I fix CVE-2023-40191?

Update com.liferay.portal:release.portal.bom to 7.4.3.98 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-40191 is resolved across your whole dependency graph.

How do I detect CVE-2023-40191 in my Maven dependencies?

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

How do I mitigate CVE-2023-40191 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-2023-40191 actively exploited in the wild?

No public exploit code has been indexed for CVE-2023-40191 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-2023-40191?

CVE-2023-40191 has an EPSS (Exploit Prediction Scoring System) score of 0.6%, placing it in the 50th 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-2023-40191?

CVE-2023-40191 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-2023-40191 published, and has it been updated?

CVE-2023-40191 was published on February 21, 2024 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-2023-40191 — release.portal.bom

MEDIUM

CVE-2023-40191 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in com.liferay.portal:release.portal.bom. A fix is available for com.liferay.portal:release.portal.bom — see the affected versions and patch details below.

Liferay Portal and Liferay DXP vulnerable to reflected Cross-site Scripting

Also known asGHSA-468x-frcm-ghx6

Published

Feb 21, 2024

Updated

Oct 24, 2026

Affected

3 pkgs

Patched

2 / 3

Exploits

None indexed

Exploitation data as of Oct 31, 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-2023-40191.

EPSS Exploitation Probability

via FIRST.org ↗

0.6%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs50th percentile — riskier than 50% 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

3 pkgs affected

☕com.liferay.portal:release.portal.bom☕com.liferay.portal:release.dxp.bom☕com.liferay.portal:release.dxp.bom

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

Reflected cross-site scripting (XSS) vulnerability in the instance settings for Accounts in Liferay Portal 7.4.3.44 through 7.4.3.97, and Liferay DXP 2023.Q3 before patch 6, and 7.4 update 44 through 92 allows remote attackers to inject arbitrary web script or HTML via a crafted payload injected into the “Blocked Email Domains” text field

Affected Packages

3 total 2 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`com.liferay.portal:release.portal.bom`	≥ 7.4.3.44&&< 7.4.3.98	7.4.3.98`com.liferay.portal:release.portal.bom:7.4.3.98`
☕Maven	`com.liferay.portal:release.dxp.bom`	≥ 2023.Q3&&< 2023.Q3.6	2023.Q3.6`com.liferay.portal:release.dxp.bom:2023.Q3.6`
☕Maven	`com.liferay.portal:release.dxp.bom`	≥ 7.4.13.u44	No fix

Affected Products

2 products · 56 configurations

Application

digital experience platformliferay

7 versions

7.42023.q3.02023.q3.12023.q3.22023.q3.32023.q3.42023.q3.5

Application

liferay portalliferay

≥ 7.4.3.44 && < 7.4.3.98

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.liferay.portal:release.portal.bom, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update com.liferay.portal:release.portal.bom to 7.4.3.98 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-40191 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-2023-40191 in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

6.1/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/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.

OpenSSF Scorecard

Package health score

liferay-portal

2.5/10

Code-Review0/10

Maintained10/10

Branch-Protection0/10

Assessed Oct 26, 2026

Timeline

Disclosed

Feb 21, 2024

Last updated

Oct 24, 2026

Identifiers

CVE-2023-40191

GHSA-468x-frcm-ghx6

References

Advisoryliferay.dev · cve 2023 40191 Advisorynvd.nist.gov · CVE 2023 40191 Packagegithub.com · liferay portal

Related vulnerabilities

This CVE is medium severity; 8 of 8 other CVEs affecting release.portal.bom are rated as high or higher (top: high).

CVE-2025-62264CVE-2025-62265CVE-2025-62257CVE-2025-62266CVE-2025-62258CVE-2025-62259CVE-2025-62260CVE-2025-62261

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedOct 24, 2026