Is CVE-2020-26804 actively exploited?

No active exploitation of CVE-2020-26804 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-26804 be exploited remotely?

Yes. CVE-2020-26804 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-26804?

CVE-2020-26804 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2020-26804

CWE-434Published: November 12, 2020· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

In Sentrifugo 3.2, users can share an announcement under "Organization -> Announcements" tab. Also, in this page, users can upload attachments with the shared announcements. This "Upload Attachment" functionality is suffered from "Unrestricted File Upload" vulnerability so attacker can upload malicious files using this functionality and control the server.

NVD Source

Technical Analysis

CVE-2020-26804 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.