CVE-2020-15842

Name: CVE-2020-15842
Creator: NVD / NIST
Published: 2020-07-20T02:15:11.66+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 1.79%

Last modified Jun 17, 2026

CVE-2020-15842 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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.. EPSS estimates a 1.79% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

1.79%

75.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Liferay	Digital Experience Platform	7.0
Liferay	Digital Experience Platform	7.1
Liferay	Digital Experience Platform	7.2
Liferay	Liferay Portal	< 7.3.0

References

https://issues.liferay.com/browse/LPE-16963Issue Tracking, Vendor Advisory
https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/119317427Vendor Advisory
https://issues.liferay.com/browse/LPE-16963Issue Tracking, Vendor Advisory
https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/119317427Vendor Advisory

Timeline

Published: Jul 20, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-15842?

How severe is CVE-2020-15842?

CVE-2020-15842 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 1.79% probability of exploitation in the next 30 days.

How do I fix CVE-2020-15842?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-15842?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST