CVE-2025-43818: Liferay Digital Experience Platform

Medium severity, CVSS 6.1. EPSS: 0.2% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in the Calendar widget in Liferay Portal 7.4.3.35 through 7.4.3.110, and Liferay DXP 2023.Q4.0 through 2023.Q4.4, 2023.Q3.1 through 2023.Q3.6, 7.4 update 35 through update 92, and 7.3 update 25 through update 36 allows remote attackers to inject arbitrary web script or HTML via a crafted payload injected into a Calendar's “Name” text field

Affected products

• Liferay Digital Experience Platform: from 2023.Q3.1, before 2023.Q3.7 (fixed in 2023.Q3.7); from 2023.Q4.0, before 2023.Q4.5 (fixed in 2023.Q4.5); version 7.3 only; version 7.4 only
• Liferay Liferay Portal: from 7.4.3.35, before 7.4.3.111 (fixed in 7.4.3.111)

Published 2025-09-29. Last modified 2026-06-17.