🛡️ CVE-2025-21609
🔴 CVSS 9.1 — Critical ✅ No Known Exploit CWE-459 NVD
9.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

SiYuan is self-hosted, open source personal knowledge management software. SiYuan Note version 3.1.18 has an arbitrary file deletion vulnerability. The vulnerability exists in the `POST /api/history/getDocHistoryContent` endpoint. An attacker can craft a payload to exploit this vulnerability, resulting in the deletion of arbitrary files on the server. Commit d9887aeec1b27073bec66299a9a4181dc42969f3 fixes this vulnerability and is expected to be available in version 3.1.19.

Details

Severity HIGH
CVSS Score 9.1
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CWE CWE-459
Public Exploit ✅ No
Source NVD
Published 2025-01-03
Updated 2026-06-15
Modified 2025-01-07

Affected Packages

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

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