CVE-2025-43820: Liferay Portal vulnerable to cross-site scripting in the Calendar widget

CVE-2025-43820 · Severity: medium · CVSS 4 · Published 2025-09-30

Liferay Portal vulnerable to cross-site scripting in the Calendar widget

Technologies: com.liferay:com.liferay.calendar.web (Maven), com.liferay.portal:release.portal.bom (Maven). Vendors: Maven.

Quick answers

Is CVE-2025-43820 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-43820 being exploited in the wild.
How severe is CVE-2025-43820?
Medium severity, with a CVSS score of 4, published 30 September 2025.
Which products and versions are affected?
com.liferay:com.liferay.calendar.web (Maven) ECOSYSTEM:introduced=5.0.45,fixed=5.0.88; com.liferay.portal:release.portal.bom (Maven) ECOSYSTEM:introduced=7.4.3.35-ga35,fixed=7.4.3.111-ga111.
Is there a fix for CVE-2025-43820?
Yes. com.liferay:com.liferay.calendar.web (Maven): upgrade to 5.0.88 or later; com.liferay.portal:release.portal.bom (Maven): upgrade to 7.4.3.111-ga111 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-43820?
Check whether you run com.liferay:com.liferay.calendar.web (Maven) or com.liferay.portal:release.portal.bom (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • com.liferay:com.liferay.calendar.web (Maven): upgrade to 5.0.88 or later
    # set com.liferay:com.liferay.calendar.web to 5.0.88 in your pom.xml or build.gradle
  • com.liferay.portal:release.portal.bom (Maven): upgrade to 7.4.3.111-ga111 or later
    # set com.liferay.portal:release.portal.bom to 7.4.3.111-ga111 in your pom.xml or build.gradle

Affected products

  • com.liferay:com.liferay.calendar.web (Maven) ECOSYSTEM:introduced=5.0.45,fixed=5.0.88
  • com.liferay.portal:release.portal.bom (Maven) ECOSYSTEM:introduced=7.4.3.35-ga35,fixed=7.4.3.111-ga111

Identifiers

  • CVE-2025-43820
  • GHSA-pf86-4w35-cj89

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