Description
SiYuan before 3.7.4 fails to properly escape workspace directory paths when constructing command-line arguments for the elevated elevator.exe helper process. Attackers can create a malicious workspace directory with command metacharacters in its path and trigger the Microsoft Defender exclusion flow to execute arbitrary commands with administrator privileges after UAC approval.
CVSS 8.2EPSS 0.265%Risk 0.84
View source- Published
- 2026-08-17 11:16:40
- Affected versions
- <3.7.4
- Type
- Web application
- Last modified
- 2026-08-26 17:04:50
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H