CVE-2021-33331

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-08-03 · updated 2026-06-17
Weakness: CWE-601

Description

Open redirect vulnerability in the Notifications module in Liferay Portal 7.0.0 through 7.3.1, and Liferay DXP 7.0 before fix pack 94, 7.1 before fix pack 19 and 7.2 before fix pack 8, allows remote attackers to redirect users to arbitrary external URLs via the 'redirect' parameter.

Affected products

Liferay Digital Experience Platform: 7.0, 7.0-fix_pack_13, 7.0-fix_pack_14, 7.0-fix_pack_24, 7.0-fix_pack_25, 7.0-fix_pack_26 (+84)
Liferay Portal: from 7.0.0 before 7.3.2 — fixed in 7.3.2

How to fix

Upgrade to a fixed version: Liferay Portal 7.3.2. Check the vendor advisory for mitigations.

References

https://issues.liferay.com/browse/LPE-17022
https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/120747627
https://issues.liferay.com/browse/LPE-17022
https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/120747627

Get alerted when CVE-2021-33331 or the next vulnerability affects your stack