THREATPORT/VULNERABILITY/CVE-2021-46398
HIGH SEVERITY

CVE-2021-46398

Filebrowser vulnerability

CVSS
8.8
EPSS
6.7%
EPSS pct
93th
Exploited
No known
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.
Affected vendor
Filebrowser
Affected product
Filebrowser
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-352 — Cross-Site Request Forgery (CSRF)
Published
2022-02-04

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 6.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2021-46398

  • Confirm whether Filebrowser Filebrowser is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-46398.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-46398

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-46398 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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