CVE-2026-40259

Katalog CVE

CVSS 8.1 · High EPSS 0,54%

Kerentanan Improper Authorization pada b3log siyuan. Skor CVSS 3.1 8.1 (High) menurut github.com.

Deskripsi (NVD)

SiYuan is an open-source personal knowledge management system. In versions 3.6.3 and below, the /api/av/removeUnusedAttributeView endpoint is protected only by generic authentication that accepts publish-service RoleReader tokens. The handler passes a caller-controlled id directly to a model function that unconditionally deletes the corresponding attribute view file from the workspace without verifying that the caller has write privileges or that the target attribute view is actually unused. An authenticated publish-service reader can permanently delete arbitrary attribute view definitions by extracting publicly exposed data-av-id values from published content, causing breakage of database views and workspace rendering until manually restored. This issue has been fixed in version 3.6.4.

Rincian

Terbit di NVD

16 April 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

8.1 (High), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-285: Improper Authorization

EPSS (30 hari)

0,54% peluang dieksploitasi; lebih tinggi dari 43,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-7m5h-w69j-qggg exploit · advisory pihak ketiga
• https://github.com/siyuan-note/siyuan/releases/tag/v3.6.4 release notes