In Liferay Portal before 7.3.1, 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.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15840
Reference (s):
- https://issues.liferay.com/browse/LPE-17046
- https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/119772204
- https://portal.liferay.dev/learn/security/known-vulnerabilities