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CVE-2021-3378

CriticalPublished

FortiLogger 4.4.2.2 is affected by Arbitrary File Upload by sending a "Content-Type: image/png" header to Config/SaveUploadedHotspotLogoFile and then...

Published: Feb 1, 2021
Updated: Aug 3, 2024
Assigning CNA: mitre
Evidence observed: Mar 1, 2021

Primary CVSS

9.8/ 10Critical

nvd · CVSS 3.1

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

EPSS probability estimate

97.5%

High · next 30 days

Percentile: 99.9%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

FortiLogger 4.4.2.2 is affected by Arbitrary File Upload by sending a "Content-Type: image/png" header to Config/SaveUploadedHotspotLogoFile and then visiting Assets/temp/hotspot/img/logohotspot.asp.

Sources

fortilogger_arbitrary_fileuploadExploit
CVE-2021-3378 | FortiLogger - Unauthenticated Arbitrary File Upload (Metasploit)
FortiLogger 4.4.2.2 - Unauthenticated Arbitrary File Upload (Metasploit)Exploit
Berkan Er · multiple · Mar 1, 2021

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