CVEvulnerability

CVE-2026-40318

8.5 HIGH Published 2026-04-16 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-04-16
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
Weaknesses
CWE-24

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 configurations

• b3log siyuan (< 3.6.4)

Related

Weakness · CWE (1)

  • CWE-24 Path Traversal: '../filedir' weakness

References