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Vulnerability record · CVE-2021-33990 · published 16 April 2023

CVE-2021-33990: Liferay portal os command injection vulnerability

Liferay · Liferay Portal

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.

9.8 CVSS 3.1 Critical EPSS 12% · top 4.0% CWE-281 · CWE-281CWE-78 · OS command injection
9.8CVSS 3.1 base score
12%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 4 tagged exploit
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/171701/Liferay-Portal-6.2.5-Insecure-Permissions.html ExploitThird Party AdvisoryVDB Entry
https://github.com/fu2x2000/Liferay_exploit_Poc ExploitThird Party Advisory
http://packetstormsecurity.com/files/171701/Liferay-Portal-6.2.5-Insecure-Permissions.html ExploitThird Party AdvisoryVDB Entry
https://github.com/fu2x2000/Liferay_exploit_Poc ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-33990), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.