{"cve":"CVE-2020-15840","nvd":{"published":"2020-09-24T15:15:14.080","modified":"2026-06-17T02:57:16.963","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":[],"references":["https://issues.liferay.com/browse/LPE-17046","https://portal.liferay.dev/learn/security/known-vulnerabilities","https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/119772204","https://issues.liferay.com/browse/LPE-17046","https://portal.liferay.dev/learn/security/known-vulnerabilities"],"products":["liferay:digital_experience_platform","liferay:liferay_portal"],"source":"nvd","synced_at":"2026-10-19T21:09:53.489947993+00:00"},"epss":{"cve":"CVE-2020-15840","score":0.01217,"percentile":0.68617,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-vrwx-q9pj-x488","url":"https://osv.dev/vulnerability/GHSA-vrwx-q9pj-x488","summary":"Liferay Portal and Liferay DXP Bypass via Double Encoded URL","modified":"2025-05-28T21:13:28.082418Z","packages":[{"ecosystem":"Maven","name":"com.liferay.portal:com.liferay.portal.impl","purl":"pkg:maven/com.liferay.portal/com.liferay.portal.impl","ranges":[">=7.2.0 <7.4.0"],"fixed":["7.4.0"]},{"ecosystem":"Maven","name":"com.liferay.portal:release.dxp.bom","purl":"pkg:maven/com.liferay.portal/release.dxp.bom","ranges":["<7.0.10.fp93"],"fixed":["7.0.10.fp93"]},{"ecosystem":"Maven","name":"com.liferay.portal:release.dxp.bom","purl":"pkg:maven/com.liferay.portal/release.dxp.bom","ranges":[">=7.1.0 <7.1.10.fp19"],"fixed":["7.1.10.fp19"]},{"ecosystem":"Maven","name":"com.liferay.portal:release.dxp.bom","purl":"pkg:maven/com.liferay.portal/release.dxp.bom","ranges":[">=7.2.0 <7.2.10.fp7"],"fixed":["7.2.10.fp7"]},{"ecosystem":"Maven","name":"com.liferay.portal:release.portal.bom","purl":"pkg:maven/com.liferay.portal/release.portal.bom","ranges":["<7.3.1"],"fixed":["7.3.1"]},{"ecosystem":"Maven","name":"com.liferay.portal:com.liferay.portal.impl","purl":"pkg:maven/com.liferay.portal/com.liferay.portal.impl","ranges":["<7.1.3"],"fixed":["7.1.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}