SiYuan before v3.7.4 fails to validate the packageName parameter in Bazaar install and uninstall endpoints, allowing authenticated administrators to perform path traversal via directory traversal sequences. Attackers with admin access can write arbitrary files to any location via install operations or recursively delete directories via uninstall operations by supplying crafted packageName values.
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History
Fri, 21 Aug 2026 11:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | SiYuan before v3.7.4 fails to validate the packageName parameter in Bazaar install and uninstall endpoints, allowing authenticated administrators to perform path traversal via directory traversal sequences. Attackers with admin access can write arbitrary files to any location via install operations or recursively delete directories via uninstall operations by supplying crafted packageName values. | |
| Title | SiYuan before v3.7.4 Path Traversal via packageName | |
| Weaknesses | CWE-22 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-08-21T11:46:26.985Z
Reserved: 2026-08-20T10:55:09.093Z
Link: CVE-2026-77086
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Status : Received
Published: 2026-08-21T11:17:06.063
Modified: 2026-08-21T11:17:06.063
Link: CVE-2026-77086
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Weaknesses