# CVE-2026-93922: SiYuan stored cross-site scripting in Daily Note picker

Source: https://junglewise.ai/threats/cve-2026-93922-siyuan-through-3-8-4-renders-notebook-names-as-raw-html-in-the  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-19. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-93922 · Severity: high · CVSS 8.8 · Published 2026-09-19

SiYuan is a knowledge management and note-taking application that stores and displays user notebooks. The application fails to properly escape notebook names when rendering them in a dialog picker, allowing an attacker to create a notebook with malicious code in its name that executes when the Daily Note picker opens. Since SiYuan runs as an Electron desktop application with Node.js access, successful exploitation enables remote command execution on the user's system.

Technologies: [SiYuan Note SiYuan](https://junglewise.ai/threats/technologies/siyuan-note-siyuan). Vendors: [SiYuan Note](https://junglewise.ai/threats/vendors/siyuan-note).

## Quick answers

**Is CVE-2026-93922 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-93922 being exploited in the wild.

**How severe is CVE-2026-93922?** High severity, with a CVSS score of 8.8, published 19 September 2026.

**Which products and versions are affected?** SiYuan Note SiYuan through 3.8.4.

**Is there a fix for CVE-2026-93922?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-93922 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-93922?** Check whether you run SiYuan Note SiYuan at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a stored cross-site scripting (XSS) flaw in the Electron renderer where notebook names are rendered as raw HTML without sanitization in the Daily Note picker dialog. An attacker can craft a notebook with HTML/JavaScript payloads in the name that execute in the Electron context with Node.js permissions when the picker is opened. This allows arbitrary operating system command execution on the victim's machine.

## Affected products

- SiYuan Note SiYuan through 3.8.4

## Timeline

- 2026-09-19: disclosed

## References

- [https://pkg.go.dev/](https://pkg.go.dev/)
- [https://github.com/siyuan-note/siyuan](https://github.com/siyuan-note/siyuan)

## Related threats

- [SiYuan path-traversal bypass via Windows extended-length prefix](https://junglewise.ai/threats/cve-2026-116171-siyuan-3-5-4-before-3-8-7-on-windows-contains-a-sensitive-path)
- [SiYuan stored cross-site scripting in KaTeX math blocks](https://junglewise.ai/threats/cve-2026-116169-siyuan-from-2-10-0-before-3-8-7-contains-a-stored-cross-site)
- [SiYuan path traversal in MCP asset tool via incomplete blacklist](https://junglewise.ai/threats/cve-2026-116168-siyuan-before-3-8-7-contains-a-path-traversal-vulnerability-in)
- [SiYuan getAttributeViewSearchTarget insufficient access control](https://junglewise.ai/threats/go-2026-6632-siyuan-getattributeviewsearchtarget-returns-database-row-fd3e0f1a)
- [SiYuan Cross-Site WebSocket Hijacking in network proxy endpoint](https://junglewise.ai/threats/cve-2026-74802-siyuan-cross-site-websocket-hijacking-on-the-admin-only-network)