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Liferay Portal and Liferay DXP have Insecure Deserialization Vulnerability

High severity GitHub Reviewed Published May 24, 2022 to the GitHub Advisory Database • Updated May 28, 2025

Package

maven com.liferay.portal:release.dxp.bom (Maven)

Affected versions

>= 7.0.0, < 7.0.10.fp90
>= 7.1.0, < 7.1.10.fp17
>= 7.2.0, < 7.2.10.fp5

Patched versions

7.0.10.fp90
7.1.10.fp17
7.2.10.fp5
maven com.liferay.portal:release.portal.bom (Maven)
< 7.3.0
7.3.0

Description

Liferay Portal before 7.3.0, and Liferay DXP 7.0 before fix pack 90, 7.1 before fix pack 17, and 7.2 before fix pack 5, allows man-in-the-middle attackers to execute arbitrary code via crafted serialized payloads, because of insecure deserialization.

References

Published by the National Vulnerability Database Jul 20, 2020
Published to the GitHub Advisory Database May 24, 2022
Reviewed May 28, 2025
Last updated May 28, 2025

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(67th percentile)

Weaknesses

CVE ID

CVE-2020-15842

GHSA ID

GHSA-mg3r-9jh8-33r9

Source code

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