How severe is CVE-2025-43740?

CVE-2025-43740 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-43740 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-43740?

CVE-2025-43740 primarily affects Liferay Digital Experience Platform. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-43740?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-43740 have an EU (EUVD) identifier?

Yes. CVE-2025-43740 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25174.

When was CVE-2025-43740 published?

CVE-2025-43740 was published on 2025-08-19 and last updated on 2026-06-17.

CVE-2025-43740

CVE-2025-43740 is a medium-severity vulnerability in Liferay Digital Experience Platform with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v4: 4.6
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25174
Weakness: CWE-79
Affected product: Liferay Digital Experience Platform
Published: 2025-08-19
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-43740?: 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.
How severe is CVE-2025-43740?: CVE-2025-43740 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-43740 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-43740?: CVE-2025-43740 primarily affects Liferay Digital Experience Platform. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-43740?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-43740 have an EU (EUVD) identifier?: Yes. CVE-2025-43740 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25174.
When was CVE-2025-43740 published?: CVE-2025-43740 was published on 2025-08-19 and last updated on 2026-06-17.

References

https://liferay.dev/portal/security/known-vulnerabilities/-/asset_publisher/jekt/content/CVE-2025-43740

Affected products (2)

cpe:2.3:a:liferay:digital_experience_platform:*:*:*:*:*:*:*:*
cpe:2.3:a:liferay:liferay_portal:*:*:*:*:*:*:*:*

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