How severe is CVE-2021-33320?

CVE-2021-33320 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2021-33320 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-33320?

CVE-2021-33320 primarily affects Liferay Digital Experience Platform. In total, 91 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-33320?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-33320 published?

CVE-2021-33320 was published on 2021-08-03 and last updated on 2026-06-17.

CVE-2021-33320

CVE-2021-33320 is a medium-severity vulnerability in Liferay Digital Experience Platform with a CVSS 3.x base score of 4.3. 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-770.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Liferay Digital Experience Platform
Published: 2021-08-03
Last modified: 2026-06-17

Description

The Flags module in Liferay Portal 7.3.1 and earlier, and Liferay DXP 7.0 before fix pack 96, 7.1 before fix pack 20, and 7.2 before fix pack 5, does not limit the rate at which content can be flagged as inappropriate, which allows remote authenticated users to spam the site administrator with emails

Frequently asked questions

What is CVE-2021-33320?: The Flags module in Liferay Portal 7.3.1 and earlier, and Liferay DXP 7.0 before fix pack 96, 7.1 before fix pack 20, and 7.2 before fix pack 5, does not limit the rate at which content can be flagged as inappropriate, which allows remote authenticated users to spam the site administrator with emails
How severe is CVE-2021-33320?: CVE-2021-33320 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2021-33320 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-33320?: CVE-2021-33320 primarily affects Liferay Digital Experience Platform. In total, 91 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-33320?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-33320 published?: CVE-2021-33320 was published on 2021-08-03 and last updated on 2026-06-17.

References

Affected products (91)

cpe:2.3:a:liferay:digital_experience_platform:7.0:-:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_13:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_14:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_24:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_25:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_26:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_27:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_28:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_3:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_30:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_33:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_35:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_36:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_39:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_40:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_41:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_42:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_43:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_44:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_45:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_46:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_47:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_48:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_49:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_50:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_51:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_52:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_53:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_54:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_56:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_57:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_58:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_59:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_60:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_61:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_64:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_65:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_66:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_67:*:*:*:*:*:*
cpe:2.3:a:liferay:digital_experience_platform:7.0:fix_pack_68:*:*:*:*:*:*

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