🛡️ CVE-2026-40318
🟠 CVSS 8.5 — High ✅ No Known Exploit CWE-24 NVD
8.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 8.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
CWE CWE-24
Public Exploit ✅ No
Source NVD
Published 2026-04-10
Updated 2026-06-02
Modified 2026-05-05
Fix URL N/A

Affected Packages

Software From version Fixed in
github.com/siyuan-note/siyuan/kernel
siyuan 3.6.4

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