CVE-2026-40318

HIGH

8.5

Descricao

SiYuan is an open-source personal knowledge management system. In versions 3.6.3 and prior, the /api/av/removeUnusedAttributeView endpoint constructs a filesystem path using the user-controlled id parameter without validation or path boundary enforcement. An attacker can inject path traversal sequences such as ../ into the id value to escape the intended directory and delete arbitrary .json files on the server, including global configuration files and workspace metadata. This issue has been fixed in version 3.6.4.

Detalhes CVE

Pontuacao CVSS v3.18.5

SeveridadeHIGH

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado4/16/2026

Ultima modificacao4/20/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

b3log:siyuan

Fraquezas (CWE)

CWE-24

Referencias

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

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-vw86-c94w-v3x4(security-advisories@github.com)

Correlacoes IOC

Sem correlacoes registradas

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