CVE-2025-43755Network attack vector

Stored script execution via GroupPagesPortlet type parameter

Published Aug 21, 2025 · Updated Aug 21, 2025

Stored XSS in Liferay Portal and Liferay DXP allows remote authenticated users to inject JavaScript through the GroupPagesPortlet type parameter. The layout administration portlet stores the namespaced type parameter without neutralizing its script content for subsequent page rendering. High-privilege authenticated access is required; payload execution can read or alter data available to affected browser sessions without interrupting the service.

CVSS severity5.1
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Liferay Portal and Liferay DXP allows remote authenticated users to inject JavaScript through the GroupPagesPortlet type parameter. The layout administration portlet stores the namespaced type parameter without neutralizing its script content for subsequent page rendering. High-privilege authenticated access is required; payload execution can read or alter data available to affected browser sessions without interrupting the service.

The record

CVE
CVE-2025-43755
Published
Aug 21, 2025
Updated
Aug 21, 2025
Vendor
Liferay
Product
Liferay Portal
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.4.0 <=7.4.3.132

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Liferay · Liferay Portalversion=7.4.0 <=7.4.3.132
Liferay · Liferay DXPversion=2024.Q1.1 <=2024.Q1.17; version=2024.Q2.0 <=2024.Q2.13; version=2024.Q3.0 <=2024.Q3.13; version=2024.Q4.0 <=2024.Q4.7; version=2025.Q1.0 <=2025.Q1.13; version=2025.Q2.0; version=7.4.13 <=7.4.13-u92

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.1Liferay Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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