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Advisory record · GHSA-gccf-r9xp-x8jx

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

CVSS 2.0 LowEPSS 0.0021 · 11th percentile

Published by the GitHub Advisory Database at 23 Oct 2025, 21:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
com.liferay:com.liferay.knowledge.base.webMaven<5.0.1095.0.109
Identifiers
GHSA-gccf-r9xp-x8jx · CVE-2025-62255
Weakness (CWE)
CWE-79
Tags
Published
23 Oct 2025
Updated
23 Oct 2025

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Liferay's Knowledge Base web module (com.liferay.knowledge.base.web) is vulnerable to self cross-site scripting on the edit Knowledge Base article page in versions before 5.0.109. An attacker who can supply a crafted attachment filename can inject arbitrary script or HTML that runs in the browser of the user viewing that page. Upgrade to version 5.0.109 or later.

Written 7 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
2.0 Low 4.0 CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CNA (Liferay)
  • CISA KEV Not listed.
  • EPSS 0.0021, the 11th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:10 UTC First seen by agentprime
  2. 31 Oct 2026, 15:10 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.