CVE-2021-26828 — OpenPLC ScadaBR Unrestricted Upload of File with Dangerous Type Vulnerability
2025-12-03 • CISA Known Exploited Vulnerability
[event] OpenPLC ScadaBR contains an unrestricted upload of file with dangerous type vulnerability that allows remote authenticated users to upload and execute arbitrary JSP files via view_edit.shtm.
> AFFECTED SOFTWARE
| Field | Value |
|---|---|
| Vendor | OpenPLC |
| Product | ScadaBR |
| CWE | CWE-434 |
| CVE ID | CVE-2021-26828 |
| Date Added | 2025-12-03 |
| Due Date | 2025-12-24 |
| Ransomware Campaign | Unknown |
> MITIGATION
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Due Date: 2025-12-24