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Tracking
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Tue, 28 Jul 2026 01:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
B3log
B3log siyuan |
|
| CPEs | cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:* | |
| Vendors & Products |
B3log
B3log siyuan |
Mon, 27 Jul 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Siyuan
Siyuan siyuan |
|
| Vendors & Products |
Siyuan
Siyuan siyuan |
|
| Metrics |
ssvc
|
Sat, 25 Jul 2026 11:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | SiYuan before v3.7.2 contains a missing authorization vulnerability in the POST /mcp kernel endpoint, which is gated only by a general auth check (model.CheckAuth) with no admin-role or read-only enforcement. This exposes 31 MCP tools, including a file tool with list/read/write/delete/rename/copy actions across the entire workspace. When the Publish server is enabled in anonymous mode (Conf.Publish.Enable=true and Conf.Publish.Auth.Enable=false), the Publish reverse proxy attaches an anonymous RoleReader JWT to proxied requests, allowing a remote unauthenticated attacker to reach /mcp. The attacker can read conf/conf.json to extract accessAuthCode, api.token, and cookieKey in plaintext, write arbitrary files in the workspace, and plant a plugin into data/plugins/ that executes with nodeIntegration:true and no contextIsolation on the next desktop launch, leading to administrator takeover. | |
| Title | SiYuan before v3.7.2 Unauthenticated Administrator Takeover via MCP | |
| Weaknesses | CWE-862 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-07-28T01:06:21.864Z
Reserved: 2026-07-23T19:22:30.643Z
Link: CVE-2026-66012
Updated: 2026-07-27T14:06:12.056Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-07-27T15:15:12Z