Is CVE-2021-3376 in the CISA KEV catalog?

No. CVE-2021-3376 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-3376?

CVE-2021-3376 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2021-3376?

CVE-2021-3376 has an EPSS score of 1.10% (62th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-3376?

Upgrade cuppacms to 31/jan/2021 or later.

CVE & CISA-KEV Catalog

CVE-2021-3376

HIGH

8.8

CVSS v3

NVD

Description

An issue was discovered in Cuppa CMS Versions Before 31 Jan 2021 allows authenticated attackers to gain escalated privileges via a crafted POST request using the user_group_id_field parameter.

How to fix

Remediation Available

cuppacmsNVD

Affected:< 31/jan/2021Fixed in:31/jan/2021CVE-2021-3376derived 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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.10%probability of exploitation in 30 days

62ndpercentile

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

References

Exploit1

github.com

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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 2024-11-21.