SiYuan version 3.0.3 allows executing arbitrary commands on the server. This is possible because the application is vulnerable to Server Side XSS.
https://github.com/siyuan-note/siyuan/
https://fluidattacks.com/advisories/dezco/
Source: Mitre, NVD
Published: 2024-04-04
Updated: 2025-05-19
Base Score: 9
Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C
Severity: High
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Severity: Critical
EPSS: 0.00353