CVE-2020-15839

Name: CVE-2020-15839
Creator: NVD / NIST
Published: 2020-09-22T18:15:23.98+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 2.16%

Last modified Jun 17, 2026

CVE-2020-15839 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Liferay Portal before 7.3.3, and Liferay DXP 7.1 before fix pack 18 and 7.2 before fix pack 6, does not restrict the size of a multipart/form-data POST action, which allows remote authenticated users to conduct denial-of-service attacks by uploading large files.. EPSS estimates a 2.16% chance of exploitation in the next 30 days.

Description

Liferay Portal before 7.3.3, and Liferay DXP 7.1 before fix pack 18 and 7.2 before fix pack 6, does not restrict the size of a multipart/form-data POST action, which allows remote authenticated users to conduct denial-of-service attacks by uploading large files.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

2.16%

79.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Liferay	Digital Experience Platform	7.1
Liferay	Digital Experience Platform	7.2
Liferay	Liferay Portal	< 7.3.3

References

https://issues.liferay.com/browse/LPE-17029Vendor Advisory
https://issues.liferay.com/browse/LPE-17055Vendor Advisory
https://portal.liferay.dev/learn/security/known-vulnerabilitiesVendor Advisory
https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/119784928Vendor Advisory
https://issues.liferay.com/browse/LPE-17029Vendor Advisory
https://issues.liferay.com/browse/LPE-17055Vendor Advisory
https://portal.liferay.dev/learn/security/known-vulnerabilitiesVendor Advisory
https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/119784928Vendor Advisory

Timeline

Published: Sep 22, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-15839?

How severe is CVE-2020-15839?

CVE-2020-15839 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 2.16% probability of exploitation in the next 30 days.

How do I fix CVE-2020-15839?

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-2020-15839?

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

Scan your code now

Source: NVD / NIST