How severe is CVE-2020-26804?

CVE-2020-26804 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-26804 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-26804?

CVE-2020-26804 affects Sapplica Sentrifugo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-26804?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-26804 published?

CVE-2020-26804 was published on 2020-11-12 and last updated on 2026-06-17.

CVE-2020-26804

CVE-2020-26804 is a high-severity vulnerability in Sapplica Sentrifugo with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Sapplica Sentrifugo
Published: 2020-11-12
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2020-26804?: 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.
How severe is CVE-2020-26804?: CVE-2020-26804 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-26804 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-26804?: CVE-2020-26804 affects Sapplica Sentrifugo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-26804?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-26804 published?: CVE-2020-26804 was published on 2020-11-12 and last updated on 2026-06-17.

References

https://fatihhcelik.blogspot.com/2020/10/sentrifugo-version-32-rce-authenticated.html

Affected products (1)

cpe:2.3:a:sapplica:sentrifugo:3.2:*:*:*:*:*:*:*

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