CVE-2020-15840 json
Liferay Portal and Liferay DXP Bypass via Double Encoded URL
published 2020-09-24 6 y ago modified 2026-06-17 4 mo ago also GHSA-vrwx-q9pj-x488 , EUVD-2020-7821
- cvss
- 5.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- maven com.liferay.portal:com.liferay.portal.impl 7.1.3, 7.4.0
- maven com.liferay.portal:release.dxp.bom 7.0.10.fp93, 7.1.10.fp19, 7.2.10.fp7
- maven com.liferay.portal:release.portal.bom 7.3.1
- liferay liferay_portal 7.3.1
Exploit prediction
1.22% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
| GitHub | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | com.liferay.portal:com.liferay.portal.impl | >=7.2.0, <7.4.0 <7.1.3 |
7.4.0 7.1.3 |
| maven | com.liferay.portal:release.dxp.bom | <7.0.10.fp93 >=7.1.0, <7.1.10.fp19 >=7.2.0, <7.2.10.fp7 |
7.0.10.fp93 7.1.10.fp19 7.2.10.fp7 |
| maven | com.liferay.portal:release.portal.bom | <7.3.1 |
7.3.1 |
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
portal.liferay.dev
/learn/security/known-vulnerabilities
web, vendor-advisory
-
issues.liferay.com
/browse/LPE-17046
web, issue-tracking, vendor-advisory
-
portal.liferay.dev
/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/119772204
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-15840
advisory
-
github.com
/liferay/liferay-portal
package
-
security.snyk.io
/vuln/SNYK-JAVA-COMLIFERAYPORTAL-1296538
web
Sources
- CVE List CVE-2020-15840
- GitHub Advisory GHSA-vrwx-q9pj-x488
- NVD CVE-2020-15840
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