High severity8.8NVD Advisory· Published Sep 19, 2026· Updated Sep 22, 2026

CVE-2026-93922

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Siyuan Note/Siyuanllm-fuzzy
Range: <=3.8.4

Patches

Vulnerability mechanics

References

github.com/siyuan-note/siyuan/blob/v3.8.4/app/src/util/mount.tsnvd
github.com/siyuan-note/siyuan/blob/v3.8.4/kernel/model/file.gonvd
github.com/siyuan-note/siyuan/security/advisories/GHSA-8c2m-33v9-vvqmnvd
www.vulncheck.com/advisories/siyuan-through-3.8.4-stored-xss-via-notebook-namesnvd

News mentions

Siyuan Note: Six XSS and SQLi Vulnerabilities Disclosed Together, Patched in v3.8.4
Vypr Intelligence · Sep 19, 2026

cvss	0.572
epss	0.001
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000