{"id":"CVE-2020-15840","aliases":["GHSA-vrwx-q9pj-x488"],"url":"https://o3.security/vulnerability/CVE-2020-15840","summary":"Liferay Portal and Liferay DXP Bypass via Double Encoded URL","details":"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.","published":"2020-09-24T15:15:14.080Z","modified":"2026-09-05T03:30:51.740798827Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"com.liferay.portal:com.liferay.portal.impl","fixedVersion":"7.4.0"},{"ecosystem":"Maven","name":"com.liferay.portal:release.dxp.bom","fixedVersion":"7.0.10.fp93"},{"ecosystem":"Maven","name":"com.liferay.portal:release.dxp.bom","fixedVersion":"7.1.10.fp19"},{"ecosystem":"Maven","name":"com.liferay.portal:release.dxp.bom","fixedVersion":"7.2.10.fp7"},{"ecosystem":"Maven","name":"com.liferay.portal:release.portal.bom","fixedVersion":"7.3.1"},{"ecosystem":"Maven","name":"com.liferay.portal:com.liferay.portal.impl","fixedVersion":"7.1.3"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://portal.liferay.dev/learn/security/known-vulnerabilities"},{"type":"ADVISORY","url":"https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/119772204"},{"type":"REPORT","url":"https://issues.liferay.com/browse/LPE-17046"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-05T03:30:51.740798827Z"}}