CVE-2021-26828
Summary
| CVE | CVE-2021-26828 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-06-11 12:15:00 UTC |
| Updated | 2021-06-21 18:47:00 UTC |
| 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. |
Risk And Classification
EPSS: 0.800170000 probability, percentile 0.990980000 (date 2026-04-01)
CISA KEV: Listed on 2025-12-03; due 2025-12-24; ransomware use Unknown
Problem Types: CWE-434
CISA Known Exploited Vulnerability
| Vendor | OpenPLC |
|---|---|
| Product | ScadaBR |
| Name | OpenPLC ScadaBR Unrestricted Upload of File with Dangerous Type Vulnerability |
| 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. |
| Notes | This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://github.com/SCADA-LTS/Scada-LTS/pull/2174 ; https://nvd.nist.gov/vuln/detail/CVE-2021-26828 |
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Openplcproject | Scadabr | All | All | All | All |
| Application | Openplcproject | Scadabr | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| [REPORT] Falhas de segurança em versões do ScadaBR - ScadaBR - Geral - ScadaBR | MISC | forum.scadabr.com.br | |
| ScadaBR 1.0 / 1.1CE Linux Shell Upload ≈ Packet Storm | MISC | packetstormsecurity.com | |
| ScadaBR CE 1.12.4 - Remote Code Execution via Arbitrary File Upload (Authenticated) - Windows 7 x64 - YouTube | MISC | youtu.be | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
| CISA Known Exploited Vulnerabilities catalog | CISA | www.cisa.gov | kev |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.