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CVE-2020-15840: Liferay Portal and Liferay DXP Bypass via Double Encoded URL

May 24, 2022 (updated May 28, 2025)

In Liferay Portal before 7.3.1, com.liferay.portal:com.liferay.portal.impl before 7.1.3 and 7.4.0, Liferay Portal 6.2 EE, and Liferay DXP 7.2, DXP 7.1 and DXP 7.0, the property ‘portlet.resource.id.banned.paths.regexp’ can be bypassed with doubled encoded URLs.

References

  • github.com/advisories/GHSA-vrwx-q9pj-x488
  • github.com/liferay/liferay-portal
  • issues.liferay.com/browse/LPE-17046
  • nvd.nist.gov/vuln/detail/CVE-2020-15840
  • portal.liferay.dev/learn/security/known-vulnerabilities
  • portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/119772204
  • security.snyk.io/vuln/SNYK-JAVA-COMLIFERAYPORTAL-1296538

Code Behaviors & Features

Detect and mitigate CVE-2020-15840 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions before 7.0.10.fp93, all versions starting from 7.1.0 before 7.1.10.fp19, all versions starting from 7.2.0 before 7.2.10.fp7

Fixed versions

  • 7.0.10.fp93
  • 7.1.10.fp19
  • 7.2.10.fp7

Solution

Upgrade to versions 7.0.10.fp93, 7.1.10.fp19, 7.2.10.fp7 or above.

Impact 5.3 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Learn more about CVSS

Weakness

  • CWE-284: Improper Access Control

Source file

maven/com.liferay.portal/release.dxp.bom/CVE-2020-15840.yml

Spotted a mistake? Edit the file on GitLab.

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