CVE-2021-26829
medium · 5.4Actively exploitedOn the CISA Known Exploited Vulnerabilities catalog
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Added 2025-11-28Remediation due 2025-12-19
OpenPLC ScadaBR through 0.9.1 on Linux and through 1.12.4 on Windows allows stored XSS via system_settings.shtm.
5.4
CVSS
48.0%
EPSS (exploit prob.)
99th
EPSS percentile
2021-06-11
Published
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weaknesses
CWE-79
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| scadabr | scadabr | <= 0.9.1 |
| linux | linux_kernel | all versions |
| scadabr | scadabr | <= 1.12.4 |
| microsoft | windows | all versions |
Check a specific version with /api/v1/cve/match.
References
- http://forum.scadabr.com.br/t/report-falhas-de-seguranca-em-versoes-do-scadabr/3615/4
- https://youtu.be/Xh6LPCiLMa8
- http://forum.scadabr.com.br/t/report-falhas-de-seguranca-em-versoes-do-scadabr/3615/4
- https://youtu.be/Xh6LPCiLMa8
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26829
- https://www.forescout.com/blog/anatomy-of-a-hacktivist-attack-russian-aligned-group-targets-otics/
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2021-26829