Is CVE-2019-20876 in the CISA KEV catalog?

No. CVE-2019-20876 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-20876?

CVE-2019-20876 has a CVSS v3 base score of 5.4 (MEDIUM).

What is the EPSS score for CVE-2019-20876?

CVE-2019-20876 has an EPSS score of 0.79% (52th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-20876?

Upgrade mattermost server to 5.8.1 or later.

CVE & CISA-KEV Catalog

CVE-2019-20876

MEDIUM

5.4

CVSS v3

NVD

Description

An issue was discovered in Mattermost Server before 5.9.0, 5.8.1, 5.7.3, and 4.10.8. Users can deactivate themselves, bypassing a policy.

How to fix

Remediation Available

mattermost serverNVD

Affected:>= 5.8.0, < 5.8.1Fixed in:5.8.1CVE-2019-20876derived 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

ConfidentialityNone

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

0.79%probability of exploitation in 30 days

52ndpercentile

Moderate risk: more likely to be exploited than 52% of all known CVEs.

References

Vendor Advisory1

mattermost.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.