CVE-2025-43821Network attack vector

Stored XSS via unsanitized Commerce Product names

Published Oct 8, 2025 · Updated Oct 8, 2025

Stored XSS in affected Liferay Portal and DXP releases allows remote authenticated users to run script in comparison-table viewers' browsers. The CPDefinitionLocalization name field lacked HTML sanitization, so the widget rendered a stored Commerce Product name containing attacker-controlled markup. A low-privileged user must save a crafted product name and another user must view the comparison table, enabling page-content changes and access to data available to that user's browser session.

CVSS severity4.8
Medium
EPSS probability0.22%
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 affected Liferay Portal and DXP releases allows remote authenticated users to run script in comparison-table viewers' browsers. The CPDefinitionLocalization name field lacked HTML sanitization, so the widget rendered a stored Commerce Product name containing attacker-controlled markup. A low-privileged user must save a crafted product name and another user must view the comparison table, enabling page-content changes and access to data available to that user's browser session.

The record

CVE
CVE-2025-43821
Published
Oct 8, 2025
Updated
Oct 8, 2025
Vendor
Liferay
Product
Liferay Portal
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 8, 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 <=7.4.3.111

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Liferay · Liferay Portalversion=7.4.0 <=7.4.3.111
Liferay · Liferay DXPversion=2023.Q3.1 <=2023.Q3.8; version=2023.Q4.0 <=2023.Q4.5; 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
4.8Liferay Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/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')
T1189Drive-by Compromise

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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