XSS in Liferay Portal 7.4.3.35-7.4.3.110 Calendar Widget: User Name Fields
CVE-2025-43820 Published on September 29, 2025
Multiple cross-site scripting (XSS) vulnerabilities in the Calendar widget when inviting users to a event 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 35 allow remote attackers to inject arbitrary web script or HTML via a crafted payload injected into a users (1) First Name, (2) Middle text, or (3) Last Name text fields.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2025-43820 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2025-43820
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2025-43820 are published in these products:
Affected Versions
Liferay Portal:- Version 7.4.3.35, <= 7.4.3.110 is affected.
- Version 7.3.10-u25, <= 7.3.10-u36 is affected.
- Version 7.4.13-u35, <= 7.4.13-u92 is affected.
- Version 2023.Q3.1, <= 2023.Q3.6 is affected.
- Version 2023.Q4.0, <= 2023.Q4.4 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.