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Vulnerabilities

Vulnerability · CVE-2025-43802

Stored cross-site scripting (XSS) vulnerability in a custom object’s /o/c/ API endpoint in Liferay Portal 7.4.3.51 through 7.4.3.109, and Liferay DXP 2023.Q3.1 through 2023.Q3.4, 7

Published Sep 15, 2025 · catalog updated Sep 16, 2025 · Liferay Portal

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-43802. EPSS is 0.27%. Act only if a listed version of Liferay Portal is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium4.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.27%
Remediation
Advisory link
Affected products
vendor Liferay Portal 7.4.3.51 ≤7.4.3.111

Stored cross-site scripting (XSS) vulnerability in a custom object’s /o/c/ API endpoint in Liferay Portal 7.4.3.51 through 7.4.3.109, and Liferay DXP 2023.Q3.1 through 2023.Q3.4, 7.4 update 51 through update 92, and 7.3 update 33 through update 35. allows remote attackers to inject arbitrary web script or HTML via the externalReferenceCode parameter.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Liferay Portal 7.4.3.51 ≤7.4.3.1117.4.3.51 ≤7.4.3.111

How to fix CVE-2025-43802

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-43802. EPSS is 0.27%. Act only if a listed version of Liferay Portal is installed.

Which versions are affected?

Compare what you have installed with Liferay Portal 7.4.3.51 ≤7.4.3.111 7.4.3.51 ≤7.4.3.111. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.27%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 15, 2025 · EUVD

    Detected

    Stored cross-site scripting (XSS) vulnerability in a custom object’s /o/c/ API endpoint in Liferay Portal 7.4.3.51 through 7.4.3.109, and Liferay DXP 2023.Q3.1 through 2023.Q3.4, 7.4 update 51 through update 92, and 7.3 update 33 through update 35. allows remote attackers to inject arbitrary web script or HTML via the externalReferenceCode parameter.

  2. Sep 16, 2025 · EUVD

    Updated

    Stored cross-site scripting (XSS) vulnerability in a custom object’s /o/c/ API endpoint in Liferay Portal 7.4.3.51 through 7.4.3.109, and Liferay DXP 2023.Q3.1 through 2023.Q3.4, 7.4 update 51 through update 92, and 7.3 update 33 through update 35. allows remote attackers to inject arbitrary web script or HTML via the externalReferenceCode parameter.

Sources

  • CVE.orgVulnerability recordCVE-2025-43802

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-43802

    30-day exploitation probability 0.27%

    first.org
  • EUVDVulnerability recordEUVD-2025-29263

    Stored cross-site scripting (XSS) vulnerability in a custom object’s /o/c/ API endpoint in Liferay Portal 7.4.3.51 through 7.4.3.109, and Liferay DXP 2023.Q3.1 through 2023.Q3.4, 7.4 update 51 through update 92, and 7.3 update 33 through update 35. allows remote attackers to inje

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • EUVDOct 23, 2026
  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 22, 2026