PT-2026-57012 · Siyuan · Siyuan

CVE-2026-59855

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Published

2026-07-09

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Updated

2026-07-10

CVSS v4.0

8.6

High

VectorAV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.7.1
Description In the Asset.render function within app/src/asset/index.ts, the unsanitized this.path variable is interpolated into HTML assigned to innerHTML. A crafted asset link containing a double quote can break out of the src attribute to inject an event handler, enabling the execution of JavaScript that can run operating system commands in the Electron renderer.
Recommendations Update to version 3.7.1 or 3.7.1-alpha.2.

Exploit

Fix

RCE

XSS

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Weakness Enumeration

Related Identifiers

CVE-2026-59855
GHSA-W3GQ-5J72-36VC

Affected Products

Siyuan