What is CVE-2025-43734?

CVE-2025-43734 is a medium-severity vulnerability in Liferay Digital Experience Platform, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-08-12.

How severe is CVE-2025-43734?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Liferay Digital Experience Platform

CVE-2025-43734

A reflected cross-site scripting (XSS) vulnerability in the Liferay Portal 7.4.0 through 7.4.3.132, and Liferay DXP 2025.Q1.0 through 2025.Q1.10, 2024.Q4.0 through 2024.Q4.7, 2024.Q3.1 through 2024.Q3.13, 2024.Q2.1 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.16 and 7.4 GA through update 92 allows a remote authenticated attacker to inject JavaScript code in the “first display label” field in the configuration of a custom sort widget. This malicious payload is then reflected and executed by clay button taglib when refreshing the page.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (11.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

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

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@liferay.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-43734?: CVE-2025-43734 is a medium-severity vulnerability in Liferay Digital Experience Platform, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-08-12.
How severe is CVE-2025-43734?: Medium severity. CVSS v3 base score is 5.4 out of 10.