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CVE-2020-15840

16
FAUCET Score

CVE-2020-15840 describes a bypass vulnerability in Liferay Portal and DXP versions prior to 7.3.1, 6.2 EE, and 7.0-7.2 respectively, allowing attackers to circumvent security restrictions via double-encoded URLs. This medium-severity vulnerability (CVSS 5.3) has a low potential impact, primarily affecting confidentiality, and can be exploited remotely without authentication or user interaction. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion, indicating a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:a:liferay:digital_experience_platform:7.0:*:*:*:*:*:*:*
7.1CPE matchmatch criteria
cpe:2.3:a:liferay:digital_experience_platform:7.1:*:*:*:*:*:*:*
7.2CPE matchmatch criteria
cpe:2.3:a:liferay:digital_experience_platform:7.2:*:*:*:*:*:*:*
< 7.3.1CPE matchmatch criteria
cpe:2.3:a:liferay:liferay_portal:*:*:*:*:*:*:*:*
6.2CPE matchmatch criteria
cpe:2.3:a:liferay:liferay_portal:6.2:-:*:*:enterprise:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.21%
Probability of exploitation in next 30 days
EPSS Percentile
65.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0121 is in the 43rd percentile among its peer group of 23,723 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

mavenpatch availablevia ghsa
Product: com.liferay.portal:com.liferay.portal.implFixed in: 7.4.0
mavenpatch availablevia ghsa
Product: com.liferay.portal:release.dxp.bomFixed in: 7.0.10.fp93
mavenpatch availablevia ghsa
Product: com.liferay.portal:release.dxp.bomFixed in: 7.1.10.fp19
mavenpatch availablevia ghsa
Product: com.liferay.portal:release.dxp.bomFixed in: 7.2.10.fp7
mavenpatch availablevia ghsa
Product: com.liferay.portal:release.portal.bomFixed in: 7.3.1
mavenpatch availablevia ghsa
Product: com.liferay.portal:com.liferay.portal.implFixed in: 7.1.3

Vendor Advisories (1)

mavenGHSA-vrwx-q9pj-x488medium

Liferay Portal and Liferay DXP Bypass via Double Encoded URL

May 24, 2022

References

issues.liferay.com / browse/LPE-17046
Issue TrackingVendor Advisory
portal.liferay.dev / learn/security/known-vulnerabilities
Vendor Advisory
portal.liferay.dev / learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/119772204
Vendor Advisory