HIGH SeverityCVSS 3.18.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H

CVE-2026-40318

Last updated Apr 16, 2026 · Published Apr 16, 2026

Description

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.

Affected products

1 listed

siyuan-note:siyuan

Mappings

CWE

CWE-24

CAPEC

None listed.