← Voltar para CVEs

CVE-2026-40922

MEDIUM

5.4

Descricao

SiYuan is an open-source personal knowledge management system. In versions 3.6.1 through 3.6.3, a prior fix for XSS in bazaar README rendering (incomplete fix for CVE-2026-33066) enabled the Lute HTML sanitizer, but the sanitizer does not block iframe tags, and its URL-prefix blocklist does not effectively filter srcdoc attributes which contain raw HTML rather than URLs. A malicious bazaar package author can include an iframe with a srcdoc attribute containing embedded scripts in their README. When other users view the package in SiYuan's marketplace UI, the payload executes in the Electron context with full application privileges, enabling arbitrary code execution on the user's machine. This issue has been fixed in version 3.6.4.

Detalhes CVE

Pontuacao CVSS v3.15.4

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioREQUIRED

Publicado4/17/2026

Ultima modificacao4/20/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

b3log:siyuan

Fraquezas (CWE)

CWE-79

Referencias

https://github.com/advisories/GHSA-4663-4mpg-879v(security-advisories@github.com)

https://github.com/siyuan-note/siyuan/commit/b382f50e1880ed996364509de5a10a72d7409428(security-advisories@github.com)

https://github.com/siyuan-note/siyuan/releases/tag/v3.6.4(security-advisories@github.com)

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-8q5w-mmxf-48jg(security-advisories@github.com)

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-8q5w-mmxf-48jg(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlacoes IOC

Sem correlacoes registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.