AUGUST 4, 2026
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Case File

CVE-2020-27304

CRITICAL · CVSS 9.8 EPSS 3.14%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-10-21 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It affects Windows.

CVE
CVE-2020-27304
Severity
CRITICAL
CVSS
9.8
EPSS
3.14%
Windows

Original NVD Description

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

Related CVEs

Other vulnerabilities affecting the same vendor(s)