CVE-2021-33990

Name: CVE-2021-33990
Creator: NVD / NIST
Published: 2023-04-16T04:15:07.967+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 11.92%

Last modified Jun 17, 2026

CVE-2021-33990 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Liferay Portal 6.2.5 allows Command=FileUpload&Type=File&CurrentFolder=/ requests when frmfolders.html exists. NOTE: The vendor disputes this issue because the exploit reference link only shows frmfolders.html is accessible and does not demonstrate how an unauthorized user can upload a file.. EPSS estimates a 11.92% chance of exploitation in the next 30 days.

Description

Liferay Portal 6.2.5 allows Command=FileUpload&Type=File&CurrentFolder=/ requests when frmfolders.html exists. NOTE: The vendor disputes this issue because the exploit reference link only shows frmfolders.html is accessible and does not demonstrate how an unauthorized user can upload a file.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

11.92%

95.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Liferay	Liferay Portal	6.2.5

References

http://packetstormsecurity.com/files/171701/Liferay-Portal-6.2.5-Insecure-Permissions.htmlExploit, Third Party Advisory, VDB Entry
https://github.com/fu2x2000/Liferay_exploit_PocExploit, Third Party Advisory
http://packetstormsecurity.com/files/171701/Liferay-Portal-6.2.5-Insecure-Permissions.htmlExploit, Third Party Advisory, VDB Entry
https://github.com/fu2x2000/Liferay_exploit_PocExploit, Third Party Advisory

Timeline

Published: Apr 16, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-33990?

How severe is CVE-2021-33990?

CVE-2021-33990 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 11.92% probability of exploitation in the next 30 days.

How do I fix CVE-2021-33990?

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-2021-33990?

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

Scan your code now

Source: NVD / NIST