CVE-2021-33336

Name: CVE-2021-33336
Creator: NVD / NIST
Published: 2021-08-04T13:15:08.023+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.68%

Last modified Jun 17, 2026

CVE-2021-33336 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Cross-site scripting (XSS) vulnerability in the Journal module's add article menu in Liferay Portal 7.3.0 through 7.3.3, and Liferay DXP 7.1 fix pack 18, and 7.2 fix pack 5 through 7, allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_journal_web_portlet_JournalPortlet_name parameter.. EPSS estimates a 0.68% chance of exploitation in the next 30 days.

Description

Cross-site scripting (XSS) vulnerability in the Journal module's add article menu in Liferay Portal 7.3.0 through 7.3.3, and Liferay DXP 7.1 fix pack 18, and 7.2 fix pack 5 through 7, allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_journal_web_portlet_JournalPortlet_name parameter.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.68%

47.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions	Update
Liferay	Digital Experience Platform	7.1	—
Liferay	Digital Experience Platform	7.2	Fix Pack 5
Liferay	Liferay Portal	>= 7.3.0, < 7.3.4	—

References

https://issues.liferay.com/browse/LPE-17078Patch, Vendor Advisory
https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/cve-2021-33336-stored-xss-with-structure-nameRelease Notes, Vendor Advisory
https://issues.liferay.com/browse/LPE-17078Patch, Vendor Advisory
https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/cve-2021-33336-stored-xss-with-structure-nameRelease Notes, Vendor Advisory

Timeline

Published: Aug 4, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-33336?

How severe is CVE-2021-33336?

CVE-2021-33336 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.68% probability of exploitation in the next 30 days.

How do I fix CVE-2021-33336?

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-2021-33336?

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

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Source: NVD / NIST