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VulnerabilityPublished

CVE-2025-43743: 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, 10:12 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:L/UI:N/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

  1. Immediate mitigation should include restricting access to calendar functionalities to only those users who require it, applying the principle of least privilege.
  2. Implement monitoring and alerting for unusual access patterns to calendar data or user enumeration attempts.
  3. Employ multi-factor authentication (MFA) to reduce the risk of compromised credentials being used to exploit this vulnerability.
  4. Educate users about phishing risks, especially in light of the increased risk due to exposed user information.
  5. Regularly audit user permissions and calendar sharing settings to ensure no excessive exposure.
  6. Since no official patches are currently linked, organizations should engage with Liferay support or their vendor to obtain patches or workarounds as soon as they become available.
  7. Consider deploying Web Application Firewalls (WAF) with rules to detect and block enumeration attempts targeting calendar endpoints.
  8. Review and harden API endpoints related to user data enumeration to enforce strict access controls.
  9. If feasible, temporarily disable calendar sharing features until a patch is applied. These steps go beyond generic advice by focusing on access control tightening, monitoring, user education, and proactive vendor engagement.

Description

Liferay Portal 7.4.0 through 7.4.3.132, and Liferay DXP 2025.Q1.0 through 2025.Q1.5, 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.Q1.15 and 7.4 GA through update 92 allows any authenticated remote user to view other calendars by allowing them to enumerate the names of other users, given an attacker the possibility to send phishing to these users.

References

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