Is CVE-2021-46398 in the CISA KEV catalog?

No. CVE-2021-46398 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-46398?

CVE-2021-46398 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2021-46398?

CVE-2021-46398 has an EPSS score of 6.66% (93th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-46398?

Upgrade filebrowser to 2.18.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-46398

HIGHEPSS 93th pctl

8.8

CVSS v3

NVD

Description

A Cross-Site Request Forgery vulnerability exists in Filebrowser < 2.18.0 that allows attackers to create a backdoor user with admin privilege and get access to the filesystem via a malicious HTML webpage that is sent to the victim. An admin can run commands using the FileBrowser and hence it leads to RCE.

CWE-352Cross-Site Request Forgery

How to fix

Remediation Available

filebrowserNVD

Affected:< 2.18.0Fixed in:2.18.0CVE-2021-46398derived 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 RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

6.66%probability of exploitation in 30 days

93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

References

Patch1

github.com

Exploit5

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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.