CVE-2026-93922

SiYuan through 3.8.4 renders notebook names as raw HTML in the Daily Note picker dialog without escaping, allowing stored cross-site scripting in the Electron renderer. Attackers can create notebooks with HTML payloads in names that execute JavaScript with Node.js access when the picker opens, enabling operating system command execution.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/siyuan-note/siyuan
https://github.com/siyuan-note/siyuan/blob/v3.8.4/app/src/util/mount.ts#L72
https://github.com/siyuan-note/siyuan/blob/v3.8.4/kernel/model/file.go#L2446-L2454
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-8c2m-33v9-vvqm
https://www.vulncheck.com/advisories/siyuan-through-3.8.4-stored-xss-via-notebook-names
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-8c2m-33v9-vvqm

Configurations

No configuration.

History

22 Sep 2026, 16:18

Type	Values Removed	Values Added
References	~~() https://github.com/siyuan-note/siyuan/security/advisories/GHSA-8c2m-33v9-vvqm -~~	() https://github.com/siyuan-note/siyuan/security/advisories/GHSA-8c2m-33v9-vvqm -

19 Sep 2026, 00:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-19 00:16

Updated : 2026-09-22 16:18

NVD link : CVE-2026-93922

Mitre link : CVE-2026-93922

CVE.ORG link : CVE-2026-93922

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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