How severe is CVE-2025-43766?

CVE-2025-43766 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-43766 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-43766?

CVE-2025-43766 primarily affects Liferay Digital Experience Platform. In total, 96 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-43766?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-43766 have an EU (EUVD) identifier?

Yes. CVE-2025-43766 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25729.

When was CVE-2025-43766 published?

CVE-2025-43766 was published on 2025-08-23 and last updated on 2026-06-17.

CVE-2025-43766

CVE-2025-43766 is a critical-severity vulnerability in Liferay Digital Experience Platform with a CVSS 3.x base score of 9.8. 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-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 6.8
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25729
Weakness: CWE-434
Affected product: Liferay Digital Experience Platform
Published: 2025-08-23
Last modified: 2026-06-17

Description

The Liferay Portal 7.4.0 through 7.3.3.131, and Liferay DXP 2024.Q4.0, 2024.Q3.1 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.12 and 7.4 GA through update 92 allows the upload of unrestricted files in the style books component that are processed within the environment enabling arbitrary code execution by attackers.

Frequently asked questions

What is CVE-2025-43766?: The Liferay Portal 7.4.0 through 7.3.3.131, and Liferay DXP 2024.Q4.0, 2024.Q3.1 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.12 and 7.4 GA through update 92 allows the upload of unrestricted files in the style books component that are processed within the environment enabling arbitrary code execution by attackers.
How severe is CVE-2025-43766?: CVE-2025-43766 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-43766 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-43766?: CVE-2025-43766 primarily affects Liferay Digital Experience Platform. In total, 96 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-43766?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-43766 have an EU (EUVD) identifier?: Yes. CVE-2025-43766 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25729.
When was CVE-2025-43766 published?: CVE-2025-43766 was published on 2025-08-23 and last updated on 2026-06-17.

References

https://liferay.dev/portal/security/known-vulnerabilities/-/asset_publisher/jekt/content/CVE-2025-43766

Affected products (96)

cpe:2.3:a:liferay:digital_experience_platform:*:*:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:-:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update1:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update10:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update11:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update12:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update13:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update14:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update15:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update16:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update17:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update18:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update19:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update2:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update20:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update21:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update22:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update23:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update24:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update25:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update26:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update27:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update28:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update29:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update3:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update30:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update31:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update32:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update33:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update34:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update35:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update36:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update37:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update38:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update39:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update4:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update40:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update41:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update42:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update43:*:*:*:*:*:*

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