CVE-2021-26828
HighActively exploited (CISA KEV)
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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductOpenPLC ScadaBR
PublishedJun 11, 2021
First seenJun 11, 2021
Added to KEVDec 3, 2025
Weakness typeCWE-434Unrestricted upload of dangerous file type
How to fix
CISA required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date: Dec 24, 2025Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| scadabr scadabr | v ≤ 0.9.1, v ≤ 1.12.4 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.