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CVE-2025-43755VulnerabilityPublished

CVE-2025-43755: Liferay Portal · Cross-site Scripting

Affects Liferay PortalSource CVE Database V5

0

Not known to be exploited · CVSS 5.1 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 4.0 base score
5.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 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 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
Liferay PortalAffected
  • =7.4.0
Fixed in–

AI-suggested

1. Immediate mitigation should include restricting access to the affected portlet and parameter to only the most trusted and necessary users, minimizing the attack surface. 2. Apply strict input validation and output encoding on the _com_liferay_layout_admin_web_portlet_GroupPagesPortlet_type parameter to prevent injection of malicious scripts. 3. Implement Content Security Policy (CSP) headers to limit the execution of unauthorized scripts in browsers accessing the portal. 4. Monitor logs for unusual activity related to the GroupPagesPortlet and review user actions for signs of exploitation attempts. 5. If patches become available, prioritize their deployment in test environments followed by production, ensuring compatibility and stability. 6. Educate administrators and users about the risks of XSS and the importance of reporting suspicious behavior. 7. Consider deploying Web Application Firewalls (WAFs) with custom rules to detect and block attempts to exploit this specific parameter. 8. Conduct regular security assessments and penetration tests focusing on portal components to identify and remediate similar vulnerabilities proactively.

Description

A Stored cross-site scripting vulnerability in the Liferay Portal 7.4.0 t through 7.4.3.132, and Liferay DXP 2025.Q2.0, 2025.Q1.0 through 2025.Q1.13, 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.Q1.17 and 7.4 GA through update 92 allows an remote authenticated attacker to inject JavaScript into the _com_liferay_layout_admin_web_portlet_GroupPagesPortlet_type parameter.

References

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