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CVE-2026-100639

🗓️ 26 Sep 2026 13:23:12Reported by VulnCheckType 
cve
 cve
🔗 web.nvd.nist.gov👁 7 Views

XSS leading to RCE in SiYuan v3.8.3 via HTML injection in gutter-button markup.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-100639
27 Sep 202604:50
–circl
cvelist
Cvelist
CVE-2026-100639 SiYuan before v3.8.4 Cross-Site Scripting via Kramdown IAL
26 Sep 202613:23
–cvelist
euvd
EUVD
EUVD-2026-87733
26 Sep 202613:23
–euvd
nvd
NVD
CVE-2026-100639
26 Sep 202614:16
–nvd
Vulners
CNA
Node
siyuan-notesiyuanRange0–3.8.4
[
  {
    "vendor": "siyuan-note",
    "product": "siyuan",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "3.8.4"
      },
      {
        "version": "3.8.4",
        "status": "unaffected",
        "versionType": "semver"
      }
    ]
  }
]

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26 Sep 2026 14:16Current
5.9Medium risk
Vulners AI Score5.9
CVSS 48.6
CVSS 3.18.8
7