CVE-2025-62255: Liferay Portal Self Cross-site scripting (XSS) vulnerability on the edit Knowledge Base article page

CVE-2025-62255 · Severity: medium · CVSS 6.1 · Published 2025-10-23

Self Cross-site scripting (XSS) vulnerability on the edit Knowledge Base article page in Liferay Portal 7.4.0 through 7.4.3.101, and older unsupported versions, and Liferay DXP 2023.Q3.1 through 2023.Q3.5, 7.4 GA through update 92, and older unsupported versions allows remote attackers to inject arbitrary web script or HTML via a crafted payload injected into an attachment's filename.

Technologies: Liferay Digital Experience Platform, Liferay Portal. Vendors: Liferay, Maven.

Quick answers

Is CVE-2025-62255 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-62255 being exploited in the wild.
How severe is CVE-2025-62255?
Medium severity, with a CVSS score of 6.1, published 23 October 2025.
Which products and versions are affected?
com.liferay:com.liferay.knowledge.base.web (Maven) ECOSYSTEM:introduced=0,fixed=5.0.109.
Is there a fix for CVE-2025-62255?
Yes. com.liferay:com.liferay.knowledge.base.web (Maven): upgrade to 5.0.109 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-62255?
Check whether you run Liferay Digital Experience Platform, Liferay Portal or com.liferay:com.liferay.knowledge.base.web (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.knowledge.base.web (Maven): upgrade to 5.0.109 or later
    # set com.liferay:com.liferay.knowledge.base.web to 5.0.109 in your pom.xml or build.gradle

Affected products

  • Liferay Digital Experience Platform
  • Liferay Portal
  • com.liferay:com.liferay.knowledge.base.web (Maven) ECOSYSTEM:introduced=0,fixed=5.0.109

Identifiers

  • CVE-2025-62255
  • GHSA-gccf-r9xp-x8jx

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