CVE-2026-59855CWE-80

SiYuan: Store XSS To Rce via Asset.render

High · published July 9, 2026

CVSS v4.0
8.6
EPSS
1%
Percentile
43.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.6 · HIGH
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
EPSS
0.00529 · 43.9th percentile
Weakness
CWE-80 · Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Published
2026-07-09T22:19Z
EPSS history
Timeline
  • 09 JUL 22:19Z
    SiYuan: Store XSS To Rce via Asset.render
    cvelistv5