How severe is CVE-2025-43818?

CVE-2025-43818 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-43818 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-43818?

CVE-2025-43818 primarily affects Liferay Digital Experience Platform. In total, 72 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-43818?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-43818 have an EU (EUVD) identifier?

Yes. CVE-2025-43818 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31650.

When was CVE-2025-43818 published?

CVE-2025-43818 was published on 2025-09-29 and last updated on 2026-06-17.

CVE-2025-43818

CVE-2025-43818 is a medium-severity vulnerability in Liferay Digital Experience Platform with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v4: 4.8
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-31650
Weakness: CWE-79
Affected product: Liferay Digital Experience Platform
Published: 2025-09-29
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in the Calendar widget in Liferay Portal 7.4.3.35 through 7.4.3.110, and Liferay DXP 2023.Q4.0 through 2023.Q4.4, 2023.Q3.1 through 2023.Q3.6, 7.4 update 35 through update 92, and 7.3 update 25 through update 36 allows remote attackers to inject arbitrary web script or HTML via a crafted payload injected into a Calendar's “Name” text field

Frequently asked questions

What is CVE-2025-43818?: Cross-site scripting (XSS) vulnerability in the Calendar widget in Liferay Portal 7.4.3.35 through 7.4.3.110, and Liferay DXP 2023.Q4.0 through 2023.Q4.4, 2023.Q3.1 through 2023.Q3.6, 7.4 update 35 through update 92, and 7.3 update 25 through update 36 allows remote attackers to inject arbitrary web script or HTML via a crafted payload injected into a Calendar's “Name” text field
How severe is CVE-2025-43818?: CVE-2025-43818 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-43818 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-43818?: CVE-2025-43818 primarily affects Liferay Digital Experience Platform. In total, 72 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-43818?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-43818 have an EU (EUVD) identifier?: Yes. CVE-2025-43818 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31650.
When was CVE-2025-43818 published?: CVE-2025-43818 was published on 2025-09-29 and last updated on 2026-06-17.

References

https://liferay.dev/portal/security/known-vulnerabilities/-/asset_publisher/jekt/content/CVE-2025-43818

Affected products (72)

cpe:2.3:a:liferay:digital_experience_platform:*:*:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.3:update25:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.3:update26:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.3:update27:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.3:update28:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.3:update29:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.3:update30:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.3:update31:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.3:update32:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.3:update33:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.3:update34:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.3:update35:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.3:update36:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update35:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update36:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update37:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update38:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update39:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update40:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update41:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update42:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update43:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update44:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update45:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update46:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update47:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update48:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update49:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update50:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update51:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update52:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update53:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update54:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update55:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update56:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update57:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update58:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update59:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update60:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.4:update61:*:*:*:*:*:*

More vulnerabilities in Liferay Digital Experience Platform

CVE-2025-43766 — Critical (CVSS 9.8): The Liferay Portal 7.4.0 through 7.3.3.131, and Liferay DXP 2024.Q4.0, 2024.Q3.1 through 2024.Q3.13, 2024.Q2.0 through…
CVE-2025-3594 — Critical (CVSS 9.8): Path traversal vulnerability with the downloading and installation of Xuggler in Liferay Portal 7.0.0 through 7.4.3.4,…
CVE-2024-8980 — Critical (CVSS 9.6): The Script Console in Liferay Portal 7.0.0 through 7.4.3.101, and Liferay DXP 2023.Q3.1 through 2023.Q3.4, 7.4 GA…
CVE-2024-26269 — Critical (CVSS 9.6): Cross-site scripting (XSS) vulnerability in the Frontend JS module's portlet.js in Liferay Portal 7.2.0 through…
CVE-2023-42498 — Critical (CVSS 9.6): Reflected cross-site scripting (XSS) vulnerability in the Language Override edit screen in Liferay Portal 7.4.3.8…
CVE-2023-42496 — Critical (CVSS 9.6): Reflected cross-site scripting (XSS) vulnerability on the add assignees to a role page in Liferay Portal 7.3.3 through…

All CVEs affecting Liferay Digital Experience Platform →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →