KEV Entry

CVE-2026-54066

Known Exploited Vulnerability Entry KEVIntel

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Entry Details
Confirmed Exploited

CVE-2026-54066

2026-08-03 00:00 UTC

Timestamps

2026-08-03

2026-08-03

Scope

SiYuan: Path Traversal via Double URL Encoding in /assets/*path (publish mode arbitrary file─read) | Affected: siyuan-note / siyuan | CVSS: 7.5 (HIGH) | EPSS: 0.01892 | Used in malware: unknown | Not yet in CISA KEV: True

References
  • {'id': 'CVE-2026-54066', 'url': 'https://www.cve.org/CVERecord?id=CVE-2026-54066'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/CVE-2026-54066'}

3afc81c6-5359-49d8-bb3c-0740417c036a

KEVIntel
caeb2787-0d58-4236-9039-7c86c3e566f3

2026-08-04 11:00 UTC

2026-08-04 11:00 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2026-08-03T00:00:00.000Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 7.5,
  "cvss_severity": "HIGH",
  "epss_percentile": 0.7754,
  "epss_score": 0.01892,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": true,
  "product": "siyuan",
  "title": "SiYuan: Path Traversal via Double URL Encoding in /assets/*path (publish mode arbitrary file\u2500read)",
  "used_in_malware": "unknown",
  "vendor": "siyuan-note"
}
 -
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