CVE-2025-43737Network attack vector

Browser script execution via unescaped backURL

Published Aug 19, 2025 · Updated Aug 19, 2025

Reflected XSS in Liferay Portal and DXP allows remote authenticated users to inject JavaScript through a crafted JournalPortlet request. In edit_article.jsp, the cancel link places the attacker-controlled backURL in its href without applying PortalUtil.escapeRedirect. Affected releases are Portal 7.4.3.132 and DXP 2025.Q1.0 through 2025.Q1.15 and 2025.Q2.0 through 2025.Q2.8; a signed-in user must open the crafted URL, which executes script in that user's browser under the portal origin.

CVSS severity5.1
Medium
EPSS probability0.29%
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 inject JavaScript through a crafted JournalPortlet request. In edit_article.jsp, the cancel link places the attacker-controlled backURL in its href without applying PortalUtil.escapeRedirect. Affected releases are Portal 7.4.3.132 and DXP 2025.Q1.0 through 2025.Q1.15 and 2025.Q2.0 through 2025.Q2.8; a signed-in user must open the crafted URL, which executes script in that user's browser under the portal origin.

The record

CVE
CVE-2025-43737
Published
Aug 19, 2025
Updated
Aug 19, 2025
Vendor
Liferay
Product
Liferay Portal
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 19, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 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=7.4.3.132

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Liferay · Liferay Portalversion=7.4.3.132
Liferay · Liferay DXPversion=2025.Q1.0 <=2025.Q1.15; version=2025.Q2.0 <=2025.Q2.8

Published CVSS scores

5.1Liferay Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
T1203Exploitation for Client Execution

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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