PT-2026-64997 · Siyuan Note · Siyuan

Hypnguyen1209 · CVE-2026-66396 · Publicado 2026-07-27 · Atualizado 2026-07-27

NVD

CVSS v3.1

8.4

Alta

Vetor base

AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H

SiYuan before v3.7.2 fails to escape the title-img Individual Attribute List value when rendering Gallery and Kanban cover images, allowing stored cross-site scripting via unescaped style attribute interpolation. Attackers with editor permissions can inject onload handlers that execute arbitrary code in the Electron renderer with full Node.js access when victims open affected documents.

Exploit

Correção

XSS

Enumeração de Fraquezas

CWE-79

Identificadores relacionados

CVE-2026-66396

Produtos afetados

Siyuan

Referências · 3

• 🔥 https://github.com/siyuan-note/siyuan/security/advisories/GHSA-5rxg-wh59-mg34 · Exploit
• https://vulncheck.com/advisories/siyuan-before-stored-xss-to-rce-via-title-img-ial · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-66396 · Nota de Segurança