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MEDIUM severity

Liferay Portal and Liferay DXP Cross-site scripting (XSS) vulnerability in the Frontend JS moduleGHSA-hgjv-7wjr-qwqp

MEDIUMFix: liferay/liferay-portal@eb0590c

GHSA-hgjv-7wjr-qwqp is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in com.liferay:com.liferay.frontend.js.aui.web. A fix is available for com.liferay:com.liferay.frontend.js.aui.web — see the affected versions and patch details below.

Also known asCVE-2021-33326
Published
Updated
Affected
4 pkgs
Patched
4 / 4
Exploits
None indexed
Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.0%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs63th percentile — riskier than 63% of all scored CVEsHighest risk
0.00%0.51%1.01%1.52%0.4%1.0%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

4 pkgs affected
☕com.liferay:com.liferay.frontend.js.aui.web☕com.liferay.portal:release.dxp.bom☕com.liferay.portal:release.dxp.bom☕com.liferay.portal:release.dxp.bom

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Cross-site scripting (XSS) vulnerability in the Frontend JS module before version 4.0.18, in Liferay Portal 7.3.4 and earlier, and Liferay DXP 7.0 before fix pack 96, 7.1 before fix pack 20 and 7.2 before fix pack 9, allows remote attackers to inject arbitrary web script or HTML via the title of a modal window.

Affected Packages

4 total 4 fixed
EcosystemPackageVulnerable rangeFix
☕Mavencom.liferay:com.liferay.frontend.js.aui.weball versions4.0.18com.liferay:com.liferay.frontend.js.aui.web:4.0.18
☕Mavencom.liferay.portal:release.dxp.bom≥ 7.0.0&&< 7.0.10.fp967.0.10.fp96com.liferay.portal:release.dxp.bom:7.0.10.fp96
☕Mavencom.liferay.portal:release.dxp.bom≥ 7.1.0&&< 7.1.10.fp207.1.10.fp20com.liferay.portal:release.dxp.bom:7.1.10.fp20
☕Mavencom.liferay.portal:release.dxp.bom≥ 7.2.0&&< 7.2.10.fp97.2.10.fp9com.liferay.portal:release.dxp.bom:7.2.10.fp9

Affected Products

2 products · 95 configurations
Application
digital experience platformliferay
3 versions
7.07.17.2
Application
liferay portalliferay
< 7.3.5
range

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.liferay:com.liferay.frontend.js.aui.web, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update com.liferay:com.liferay.frontend.js.aui.web to 4.0.18 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-hgjv-7wjr-qwqp is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

Cross-site scripting (XSS) vulnerability in the Frontend JS module before version 4.0.18, in Liferay Portal 7.3.4 and earlier, and Liferay DXP 7.0 before fix pack 96, 7.1 before fix pack 20 and 7.2 before fix pack 9, allows remote attackers to inject arbitrary web script or HTML via the title of a modal window.
O3 Security · Impact-Aware SCA

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Liferay Portal and Liferay DXP Cross-site scripting (XSS)…