CVE-2020-27304

Civetweb vulnerability

CVSS

9.8

EPSS

3.1%

EPSS pct

87th

Exploited

No known

The CivetWeb web library does not validate uploaded filepaths when running on an OS other than Windows, when using the built-in HTTP form-based file upload mechanism, via the mg_handle_form_request API. Web applications that use the file upload form handler, and use parts of the user-controlled filename in the output path, are susceptible to directory traversal

Affected vendor

Civetweb Project

Affected product

Civetweb

CVSS vector

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

Weakness type (CWE)

CWE-23
CWE-22 — Path Traversal

Published

2021-10-21

Risk analysis

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

Its EPSS score of 3.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2020-27304

Confirm whether Civetweb Project Civetweb is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2020-27304.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-27304

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-27304 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2020-27304?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2020-27304.

Start free scan

No credit card. Agentless.

Related vulnerabilities

Diskboss vulnerability

CRITICAL

CVE-2018-5315

Wp Events Calendar vulnerability