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CVE-2025-43751VulnerabilityPublished

CVE-2025-43751: Liferay Portal · Observable Discrepancy

Affects Liferay PortalSource CVE Database V5

0

Not known to be exploited · CVSS 6.9 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score
6.9Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 23% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
Liferay PortalAffected
  • =7.4.0
Fixed in–

AI-suggested

European organizations should implement specific mitigations beyond generic advice: 1) Monitor and analyze web application logs for unusual patterns of requests to the create account page that may indicate enumeration attempts. 2) Implement rate limiting and IP throttling on account creation and login endpoints to reduce automated probing. 3) Customize error messages and responses on the create account page to ensure uniformity regardless of whether the username exists, eliminating observable discrepancies. 4) Employ web application firewalls (WAFs) with rules designed to detect and block user enumeration techniques targeting Liferay portals. 5) Conduct internal security assessments and penetration tests focusing on user enumeration vectors in Liferay deployments. 6) Keep abreast of Liferay vendor advisories and apply patches promptly once available. 7) Educate users and administrators about the risks of user enumeration and encourage strong password policies and multi-factor authentication to mitigate risks from credential stuffing.

Description

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.

References

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