high8.8Known exploited
CVE-2021-26828
OpenPLC ScadaBR Unrestricted Upload of File with Dangerous Type Vulnerability
Exploited in the wild
This vulnerability is on the CISA Known Exploited Vulnerabilities list, added 2025-12-03. Federal due date: 2025-12-24.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Scadabr | Scadabr | through 0.9.1 through 1.12.4 |
Weakness classification
References
- NVD record
- CVE.org record
- CISA KEV catalog
- http://forum.scadabr.com.br/t/report-falhas-de-seguranca-em-versoes-do-scadabr/3615/4
- http://packetstormsecurity.com/files/162564/ScadaBR-1.0-1.1CE-Linux-Shell-Upload.html
- https://youtu.be/k1teIStQr1A
- https://github.com/SCADA-LTS/Scada-LTS/pull/2174
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26828