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CVE-2021-26829
MEDIUMCISA KEV5.4
Description
OpenPLC ScadaBR through 0.9.1 on Linux and through 1.12.4 on Windows allows stored XSS via system_settings.shtm.
CVE Details
CVSS v3.1 Score5.4
SeverityMEDIUM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack VectorNETWORK
ComplexityLOW
Privileges RequiredLOW
User InteractionREQUIRED
Published6/11/2021
Last Modified12/1/2025
Sourcekev
Honeypot Sightings0
CISA KEV
VendorOpenPLC
ProductScadaBR
Vulnerability NameOpenPLC ScadaBR Cross-site Scripting Vulnerability
KEV Date Added2025-11-28
Remediation Due Date2025-12-19
Ransomware UseUnknown
Affected Products
linux:linux_kernelmicrosoft:windowsscadabr:scadabr
Weaknesses (CWE)
CWE-79CWE-79
References
http://forum.scadabr.com.br/t/report-falhas-de-seguranca-em-versoes-do-scadabr/3615/4(cve@mitre.org)
https://youtu.be/Xh6LPCiLMa8(cve@mitre.org)
http://forum.scadabr.com.br/t/report-falhas-de-seguranca-em-versoes-do-scadabr/3615/4(af854a3a-2127-422b-91ae-364da2661108)
https://youtu.be/Xh6LPCiLMa8(af854a3a-2127-422b-91ae-364da2661108)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26829(134c704f-9b21-4f2e-91b3-4a467353bcc0)
https://www.forescout.com/blog/anatomy-of-a-hacktivist-attack-russian-aligned-group-targets-otics/(134c704f-9b21-4f2e-91b3-4a467353bcc0)
IOC Correlations
No correlations recorded
This product uses data from the NVD API but is not endorsed or certified by the NVD.