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CVE-2026-31809 SiYuan has a SVG Sanitizer Bypass via Whitespace in `javascript:` URI — Unauthenticated XSS

🗓️ 10 Mar 2026 20:58:36Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 25 Views

Unauthenticated XSS in SiYuan from SVG sanitizer whitespace bypass of javascript scheme, affecting the getDynamicIcon endpoint prior to version 3.5.10.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-31809
10 Mar 202620:58
attackerkb
Circl
CVE-2026-31809
9 Mar 202608:40
circl
CNNVD
SiYuan 跨站脚本漏洞
10 Mar 202600:00
cnnvd
CVE
CVE-2026-31809
10 Mar 202620:58
cve
EUVD
EUVD-2026-10896
10 Mar 202623:57
euvd
EUVD
EUVD-2026-10897
10 Mar 202623:57
euvd
Github Security Blog
SiYuan has a SVG Sanitizer Bypass via Whitespace in `javascript:` URI — Unauthenticated XSS
10 Mar 202623:57
github
Nuclei
SiYuan <= v3.5.9 - Cross Site Scripting
18 Jun 202612:11
nuclei
NVD
CVE-2026-31809
10 Mar 202621:16
nvd
OSV
CVE-2026-31809 SiYuan has a SVG Sanitizer Bypass via Whitespace in `javascript:` URI — Unauthenticated XSS
10 Mar 202620:58
osv
Rows per page
[
  {
    "vendor": "siyuan-note",
    "product": "siyuan",
    "versions": [
      {
        "version": "< 3.5.10",
        "status": "affected"
      }
    ]
  }
]

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