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VulnerabilityPublished

CVE-2025-43739: Liferay Portal · Observable Discrepancy

Affects Liferay PortalSource CVE Database V5

0

Not known to be exploited · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 15:59 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 20% 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:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Liferay PortalAffected
  • =7.4.0
Fixed in–

AI-suggested

Until official patches are released, European organizations should implement the following specific mitigations: 1) Restrict calendar portlet access to only trusted users and minimize the number of users with email sending capabilities through this portlet. 2) Implement strict monitoring and alerting on calendar email content changes and unusual email sending patterns within the portal. 3) Educate users to verify unexpected calendar invitations or emails, especially those requesting sensitive information or containing links. 4) Employ internal email filtering solutions that inspect and flag suspicious internal emails, including those originating from the calendar system. 5) Review and tighten authentication and session management controls to prevent unauthorized access. 6) Coordinate with Liferay support for timely patch deployment once available and apply updates promptly. 7) Consider disabling the calendar portlet email functionality if not critical to operations until a fix is applied.

Description

Liferay Portal 7.4.0 through 7.4.3.132, and Liferay DXP 2025.Q1.0 through 2025.Q1.6, 2024.Q4.0 through 2024.Q4.7, 2024.Q3.1 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.16 and 7.4 GA through update 92 allow any authenticated user to modify the content of emails sent through the calendar portlet, allowing an attacker to send phishing emails to any other user in the same organization.

References

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