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CVSS Score

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CVE-2025-43751

CVE-2025-43751: Liferay Portal User Enumeration Vulnerability via the Create Account Page

User enumeration vulnerability in Liferay Portal 7.4.0 through 7.4.3.132, and Liferay DXP 2024.Q4.0 through 2024.Q4.7, 2024.Q3.0 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.14, 2023.Q4.0 through 2023.Q4.10, 2023.Q3.1 through 2023.Q3.10 and 7.4 GA through update 92 allows remote attackers to determine if an account exist in the application via the create account page.

(GitHub Advisory)

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CVE-2025-43751

CVE-2025-43751:

N/A

CVSS Score

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
com.liferay:com.liferay.login.web	maven	< 6.0.66	6.0.66

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability is a classic user enumeration issue on the 'Create Account' page. The core of the problem lies in how the application handles registration attempts with existing email addresses. The provided commits clearly show that the developers identified and fixed this issue in the CreateAccountMVCActionCommand.java file.

The key evidence is in commit 7e9e29a9dac8e5b6db6f2a480c98b483584b2f87, which is explicitly titled "Don't add SessionError when email address is duplicate". This commit modifies the addUser method to no longer differentiate its response when a DuplicateUserEmailAddressException occurs. This directly addresses the user enumeration vector.

The other commits are refactoring and testing changes related to the same functionality, which further confirms that the CreateAccountMVCActionCommand.addUser method is the central point of this vulnerability. The vulnerable function is the one that processes the account creation request, and that is addUser. During exploitation, a profiler would show this function being called as it handles the malicious input (the registration attempt with a known email address).

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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