Is CVE-2021-33330 in the CISA KEV catalog?

No. CVE-2021-33330 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-33330?

CVE-2021-33330 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2021-33330?

CVE-2021-33330 has an EPSS score of 1.12% (62th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-33330?

Upgrade liferay portal to 7.3.3 or later.

CVE & CISA-KEV Catalog

CVE-2021-33330

MEDIUM

4.3

CVSS v3

NVD

Description

Liferay Portal 7.2.0 through 7.3.2, and Liferay DXP 7.2 before fix pack 9, allows access to Cross-origin resource sharing (CORS) protected resources if the user is only authenticated using the portal session authentication, which allows remote attackers to obtain sensitive information including the targeted user’s email address and current CSRF token.

How to fix

Remediation Available

liferay portalNVD

Affected:>= 7.2.0, < 7.3.3Fixed in:7.3.3CVE-2021-33330derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.12%probability of exploitation in 30 days

62ndpercentile

Moderate risk: more likely to be exploited than 62% of all known CVEs.

References

Patch1

issues.liferay.com

Vendor Advisory1

portal.liferay.dev

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-05-13.