CVE-2025-43753Network attack vector

Authenticated script execution via unescaped success message

Published Aug 21, 2025 · Updated Aug 22, 2025

Reflected XSS in Liferay Portal and DXP allows remote authenticated users to execute JavaScript through a form container's embedded message. RenderLayoutStructureDisplayContext.getSuccessMessage reads localized message JSON and returned it as HTML without escaping user-controlled content. Exploitation requires a highly privileged account and exposes browser-accessible data or actions to the injected script.

CVSS severity2.1
Low
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Liferay Portal and DXP allows remote authenticated users to execute JavaScript through a form container's embedded message. RenderLayoutStructureDisplayContext.getSuccessMessage reads localized message JSON and returned it as HTML without escaping user-controlled content. Exploitation requires a highly privileged account and exposes browser-accessible data or actions to the injected script.

The record

CVE
CVE-2025-43753
Published
Aug 21, 2025
Updated
Aug 22, 2025
Vendor
Liferay
Product
Liferay Portal
Classifications
CWE-79
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 22, 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=7.4.3.32 <=7.4.3.132

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Liferay · Liferay Portalversion=7.4.3.32 <=7.4.3.132
Liferay · Liferay DXPversion=2024.Q1.1 <=2024.Q1.16; version=2024Q2.0 <=2023.Q2.13; version=2024.Q3.1 <=2024.Q3.13; version=2024.Q4.0 <=2024.Q4.7; version=2025.Q1.0 <=2025.Q1.7; 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
2.1Liferay Inc.CVSS:4.0/AV:N/AC:H/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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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