CVE-2025-21609
Critical
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.
SeverityCritical
CVSS9.1
Exploit probability—
ProductB3log Siyuan
PublishedJan 3, 2025
First seenJan 3, 2025
Weakness typeCWE-459CWE-459CWE-552CWE-552
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| b3log siyuan | 3.1.18 | — |
| github.com/siyuan-note/siyuan/kernelGo | No range specified | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.