CVE-2021-26829 — OpenPLC ScadaBR Cross-site Scripting Vulnerability
2025-11-28 • CISA Known Exploited Vulnerability
[event] OpenPLC ScadaBR contains a cross-site scripting vulnerability via system_settings.shtm.
> AFFECTED SOFTWARE
| Field | Value |
|---|---|
| Vendor | OpenPLC |
| Product | ScadaBR |
| CWE | CWE-79 |
| CVE ID | CVE-2021-26829 |
| Date Added | 2025-11-28 |
| Due Date | 2025-12-19 |
| 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: 2025-12-19