How severe is CVE-2021-33338?

CVE-2021-33338 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-33338 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-33338?

CVE-2021-33338 primarily affects Liferay Digital Experience Platform. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-33338?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-33338 published?

CVE-2021-33338 was published on 2021-08-04 and last updated on 2026-06-17.

CVE-2021-33338

CVE-2021-33338 is a high-severity vulnerability in Liferay Digital Experience Platform with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.1
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Liferay Digital Experience Platform
Published: 2021-08-04
Last modified: 2026-06-17

Description

The Layout module in Liferay Portal 7.1.0 through 7.3.2, and Liferay DXP 7.1 before fix pack 19, and 7.2 before fix pack 6, exposes the CSRF token in URLs, which allows man-in-the-middle attackers to obtain the token and conduct Cross-Site Request Forgery (CSRF) attacks via the p_auth parameter.

Frequently asked questions

What is CVE-2021-33338?: The Layout module in Liferay Portal 7.1.0 through 7.3.2, and Liferay DXP 7.1 before fix pack 19, and 7.2 before fix pack 6, exposes the CSRF token in URLs, which allows man-in-the-middle attackers to obtain the token and conduct Cross-Site Request Forgery (CSRF) attacks via the p_auth parameter.
How severe is CVE-2021-33338?: CVE-2021-33338 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-33338 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-33338?: CVE-2021-33338 primarily affects Liferay Digital Experience Platform. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-33338?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-33338 published?: CVE-2021-33338 was published on 2021-08-04 and last updated on 2026-06-17.

References

Affected products (26)

cpe:2.3:a:liferay:digital_experience_platform:7.1:-:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_1:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_10:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_11:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_12:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_13:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_14:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_15:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_16:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_17:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_18:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_2:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_3:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_4:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_5:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_6:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_7:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_8:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.1:fix_pack_9:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.2:-:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.2:fix_pack_1:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.2:fix_pack_2:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.2:fix_pack_3:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.2:fix_pack_4:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.2:fix_pack_5:*:*:*:*:*:*
cpe:2.3:a:liferay:liferay_portal:*:*:*:*:*:*:*:*

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