Vulnerability · Published Jul 9, 2026 · Assigned by GitHub_M

CVE-2026-59855SiYuan: Store XSS To Rce via Asset.render

High 8.6

In plain English

A high-severity security flaw in siyuan from siyuan-note. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).

Severity (CVSS 4.0)8.6High

Exploit odds (30 days)0.4%top 67.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, Asset.render in app/src/asset/index.ts interpolates the unsanitized this.path value into HTML assigned to innerHTML, allowing a crafted asset link containing a double quote to break out of the src attribute, inject an event handler, and execute JavaScript that can run OS commands in the Electron renderer. This issue is fixed in versions 3.7.1-alpha.2 and 3.7.1.

Affected products (as reported)

Vendor	Product	Versions
siyuan-note	siyuan	< 3.7.1

Weakness: CWE-80 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-w3gq-5j72-36vc x_refsource_CONFIRM
https://github.com/siyuan-note/siyuan/commit/efbe3a557720034782643e55c9e0282530cb6bbb x_refsource_MISC
https://github.com/siyuan-note/siyuan/releases/tag/v3.7.1 x_refsource_MISC