VULNERABILITY INTELLIGENCE

CVE-2025-21609

CVSS score9.1 CRITICAL
EPSS probability0.63%
CISA KEVNot currently listed
Published2025-01-03
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

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.

Weakness classification

  • security-advisories@github.com: CWE-459
  • nvd@nist.gov: CWE-552

Primary references