CVE-2025-43751Network attack vector

Account enumeration via duplicate-email error discrepancy

Published Aug 22, 2025 · Updated Aug 22, 2025

User enumeration in affected Liferay Portal and DXP releases allows remote attackers to identify registered emails via account creation. CreateAccountMVCActionCommand adds a failure SessionError when duplicate-email validation finds an existing address, producing a response distinguishable from a new address. The create-account page must be exposed; no authentication is required, and disclosure is limited to account existence.

CVSS severity6.9
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

User enumeration in affected Liferay Portal and DXP releases allows remote attackers to identify registered emails via account creation. CreateAccountMVCActionCommand adds a failure SessionError when duplicate-email validation finds an existing address, producing a response distinguishable from a new address. The create-account page must be exposed; no authentication is required, and disclosure is limited to account existence.

The record

CVE
CVE-2025-43751
Published
Aug 22, 2025
Updated
Aug 22, 2025
Vendor
Liferay
Product
Liferay Portal
Classifications
CWE-203, T1087
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 22, 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=7.4.0 <=7.4.3.132

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Liferay · Liferay Portalversion=7.4.0 <=7.4.3.132
Liferay · Liferay DXPversion=2023.Q3.1 <=2023.Q3.10; version=2023.Q4.0 <=2023.Q4.10; version=2024.Q1.1 <=2024.Q1.14; version=2024.Q2.0 <=2024.Q2.13; version=2024.Q3.0 <=2024.Q3.13; version=2024.Q4.0 <=2024.Q4.7; version=7.4.13 <=7.4.13-u92

Published CVSS scores

5.3GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
6.9LiferayCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-203Observable Discrepancy
T1087Account Discovery

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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