VULNERABILITY INTELLIGENCE
CVE-2020-27304
CVSS score9.8 CRITICAL
EPSS probability3.27%
CISA KEVNot currently listed
Published2021-10-21
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
Weakness classification
- vuln@vdoo.com: CWE-23
- nvd@nist.gov: CWE-22
Primary references
- vuln@vdoo.com
- vuln@vdoo.com — Patch, Third Party Advisory
- vuln@vdoo.com — Mailing List, Third Party Advisory
- vuln@vdoo.com — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory