CVE-2021-26828

HIGHCISA KEV

8.8

Description

OpenPLC ScadaBR through 0.9.1 on Linux and through 1.12.4 on Windows allows remote authenticated users to upload and execute arbitrary JSP files via view_edit.shtm.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published6/11/2021

Last Modified12/4/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorOpenPLC

ProductScadaBR

Vulnerability NameOpenPLC ScadaBR Unrestricted Upload of File with Dangerous Type Vulnerability

KEV Date Added2025-12-03

Remediation Due Date2025-12-24

Ransomware UseUnknown

Affected Products

linux:linux_kernelmicrosoft:windowsscadabr:scadabr

Weaknesses (CWE)

CWE-434CWE-434

References

http://forum.scadabr.com.br/t/report-falhas-de-seguranca-em-versoes-do-scadabr/3615/4(cve@mitre.org)

http://packetstormsecurity.com/files/162564/ScadaBR-1.0-1.1CE-Linux-Shell-Upload.html(cve@mitre.org)

https://youtu.be/k1teIStQr1A(cve@mitre.org)

http://forum.scadabr.com.br/t/report-falhas-de-seguranca-em-versoes-do-scadabr/3615/4(af854a3a-2127-422b-91ae-364da2661108)

http://packetstormsecurity.com/files/162564/ScadaBR-1.0-1.1CE-Linux-Shell-Upload.html(af854a3a-2127-422b-91ae-364da2661108)

https://youtu.be/k1teIStQr1A(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/SCADA-LTS/Scada-LTS/pull/2174(134c704f-9b21-4f2e-91b3-4a467353bcc0)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26828(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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