KEV Entry

CVE-2021-26829

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2021-26829

2026-06-01 10:45 UTC

Timestamps

2026-06-01

2026-06-01

Scope

KEVIntel entry: OpenPLC ScadaBR through 0.9.1 on Linux and through 1.12.4 on Windows allows stored XSS via system_settings.shtm. | Affected: OpenPLC / ScadaBR | CVSS: 5.4 (MEDIUM) | EPSS: 0.4805 | Used in malware: unknown | Not yet in CISA KEV: False

References
  • {'id': 'CVE-2021-26829', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-26829'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2021-26829'}

f5e03e3d-6736-4f89-bb46-c1ad58c1437f

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-19 12:42 UTC

2026-06-19 12:42 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2026-06-01T10:45:14.727Z",
  "ahead_of_cisa_kev": {
    "count": 1,
    "unit": "day"
  },
  "cvss_score": 5.4,
  "cvss_severity": "MEDIUM",
  "epss_percentile": 0.98709,
  "epss_score": 0.4805,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": false,
  "product": "ScadaBR",
  "title": "OpenPLC ScadaBR through 0.9.1 on Linux and through 1.12.4 on Windows allows stored XSS via system_settings.shtm.",
  "used_in_malware": "unknown",
  "vendor": "OpenPLC"
}
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