What is CVE-2025-43766?

CVE-2025-43766 is a critical-severity vulnerability in Liferay Digital Experience Platform, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2025-08-23.

How severe is CVE-2025-43766?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Liferay Digital Experience Platform

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.

Vulnerability class: Unrestricted File Upload

EPSS: 0.004 (36.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Liferay Digital_experience_platform — versions 7.4, 2024.q4.0
Liferay Dxp — versions 7.4.13, 2024.Q1.1, 2024.Q2.0
Liferay Liferay_portal
Liferay Portal — versions 7.4.3.0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

security@liferay.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-43766?: CVE-2025-43766 is a critical-severity vulnerability in Liferay Digital Experience Platform, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2025-08-23.
How severe is CVE-2025-43766?: Critical severity. CVSS v3 base score is 9.8 out of 10.