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.
Metrics
Affected Vendors & Products
References
History
Mon, 17 Aug 2026 16:30:00 +0000
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| Metrics |
ssvc
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Mon, 17 Aug 2026 11:15:00 +0000
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| 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. | |
| Title | SiYuan before 3.7.4 Local Privilege Escalation via elevator.exe | |
| First Time appeared |
B3log
B3log siyuan |
|
| Weaknesses | CWE-78 | |
| CPEs | cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:* | |
| Vendors & Products |
B3log
B3log siyuan |
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| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-08-17T15:16:34.015Z
Reserved: 2026-08-16T12:59:42.223Z
Link: CVE-2026-74801
Updated: 2026-08-17T15:16:30.292Z
Status : Received
Published: 2026-08-17T11:16:40.323
Modified: 2026-08-17T16:17:49.183
Link: CVE-2026-74801
No data.
OpenCVE Enrichment
Updated: 2026-08-17T12:45:03Z