Is CVE-2021-39888 in the CISA KEV catalog?

No. CVE-2021-39888 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-39888?

CVE-2021-39888 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2021-39888?

CVE-2021-39888 has an EPSS score of 1.01% (59th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-39888?

Upgrade gitlab to 14.2.5 or later.

CVE & CISA-KEV Catalog

CVE-2021-39888

MEDIUM

4.3

CVSS v3

NVD

Description

In all versions of GitLab EE starting from 13.10 before 14.1.7, all versions starting from 14.2 before 14.2.5, and all versions starting from 14.3 before 14.3.1 a specific API endpoint may reveal details about a private group and other sensitive info inside issue and merge request templates.

How to fix

Remediation Available

gitlabNVD

Affected:>= 14.2.0, < 14.2.5Fixed in:14.2.5CVE-2021-39888derived 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

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.01%probability of exploitation in 30 days

59thpercentile

Moderate risk: more likely to be exploited than 59% of all known CVEs.

References

Exploit1

gitlab.com

Vendor Advisory1

gitlab.com

Other references1

hackerone.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.