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OpenPLC ScadaBR: ScadaBR Unrestricted Upload of File with Dangerous Type Vulnerability

OpenPLC ScadaBR

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. Added to CISA KEV on 2025-12-03.

Why this severity: CVSS 8.8 (CISA ADP, v3.1); actively exploited (CISA KEV)

Started: Dec 3, 2025
Closed: Dec 3, 2025
CVE: CVE-2021-26828

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Updated Dec 3, 2025

Affected

See vendor advisory / CISA notes (versions not always listed in KEV feed)

Fixed in

See vendor advisory linked in sources

Timeline1

Dec 3, 2025
CISA added CVE-2021-26828 to the KEV catalog (due 2025-12-24).

Advisories3

Notes & caveats

Derived from CISA KEV JSON feed catalogVersion 2026.10.21. CVSS from the CVE record (cvelistV5). Exact affected/fixed version strings are not always in the KEV record; verify against the vendor advisory URL. startedAt uses dateAdded (exploitation may have begun earlier; many entries are older CVEs newly confirmed as exploited in 2025).

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