How severe is CVE-2025-43740?

CVE-2025-43740 has a CVSS score of 5.4/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2025-43740?

CVE-2025-43740 affects the following packages: com.liferay.portal:release.portal.bom (Maven). Ecosystems affected: Maven.

How do I fix CVE-2025-43740?

The records we use list no patched version of com.liferay.portal:release.portal.bom for CVE-2025-43740. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

How do I detect CVE-2025-43740 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-2025-43740 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-2025-43740 actively exploited in the wild?

No public exploit code has been indexed for CVE-2025-43740 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-2025-43740?

CVE-2025-43740 has an EPSS (Exploit Prediction Scoring System) score of 0.2%, placing it in the 11th 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-2025-43740?

CVE-2025-43740 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-2025-43740 published, and has it been updated?

CVE-2025-43740 was published on August 19, 2025 and was last updated on October 20, 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-2025-43740 — release.portal.bom

MEDIUMFix: liferay/liferay-portal@32821b4

CVE-2025-43740 is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in com.liferay.portal:release.portal.bom. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Liferay Portal has Stored Cross-Site Scripting Vulnerability via Message Boards Feature

Also known asGHSA-22jp-w3cg-gvmm

Published

Aug 19, 2025

Updated

Oct 20, 2026

Affected

1 pkg

Patched

See advisory

Exploits

None indexed

Exploitation data as of Oct 23, 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-2025-43740.

EPSS Exploitation Probability

via FIRST.org ↗

0.2%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs11th percentile — riskier than 11% 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

☕com.liferay.portal:release.portal.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

A Stored cross-site scripting vulnerability in the Liferay Portal 7.4.3.120 through 7.4.3.132, and Liferay DXP 2025.Q2.0 through 2025.Q2.8, 2025.Q1.0 through 2025.Q1.15, 2024.Q4.0 through 2024.Q4.7, 2024.Q3.1 through 2024.Q3.13, 2024.Q2.1 through 2024.Q2.13 and 2024.Q1.9 through 2024.Q1.19 allows an remote authenticated attacker to inject JavaScript through the message boards feature available via the web interface.

Liferay Portal is fixed on the master branch from commit c1b7c6b.

Affected Packages

1 total

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`com.liferay.portal:release.portal.bom`	≥ 7.4.3.120-ga120	No fix

Affected Products

2 products · 7 configurations

Application

digital experience platformliferay

≥ 2025.Q2.0 && ≤ 2024.q4.7

range

Application

liferay portalliferay

≥ 7.4.3.120 && ≤ 7.4.3.132

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.
Remediation status
The records we use list no patched version of com.liferay.portal:release.portal.bom for CVE-2025-43740. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.
Mitigate without a patch
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-2025-43740 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.

OpenSSF Scorecard

Package health score

liferay-portal

2.5/10

Maintained10/10

Code-Review0/10

Branch-Protection0/10

Assessed Oct 19, 2026

Timeline

Disclosed

Aug 19, 2025

Last updated

Oct 20, 2026

Identifiers

CVE-2025-43740

GHSA-22jp-w3cg-gvmm

References

Advisoryliferay.dev · CVE 2025 43740 Advisorynvd.nist.gov · CVE 2025 43740 Webgithub.com · 32821b41f7f62271d1fb9d56c82297cd087780a4 Webgithub.com · 51e21fa8b3e8b49ed455caeab192c5bba7e15b6d Webgithub.com · c1b7c6b58f5042072c381fc2664e808ebb745826 Webliferay.atlassian.net · LPE 18276 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 20, 2026