CVE-2021-33990: Liferay Portal

Critical severity, CVSS 9.8. EPSS: 11.9% chance of exploitation in the next 30 days.

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.

Affected products

• Liferay Liferay Portal: version 6.2.5 only

Published 2023-04-16. Last modified 2026-06-17.