CVE-2024-55659: b3log Siyuan

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

SiYuan is a personal knowledge management system. Prior to version 3.1.16, the `/api/asset/upload` endpoint in Siyuan is vulnerable to both arbitrary file write to the host and stored cross-site scripting (via the file write). Version 3.1.16 contains a patch for the issue.

Affected products

• b3log Siyuan: version 3.1.15 only

Published 2024-12-12. Last modified 2026-06-17.