CyberRota Analysis
AI-GeneratedThe SiYuan kernel prior to version 3.7.4 is vulnerable due to a path traversal flaw in the database_clean MCP tool, which inadequately validates the id parameter, allowing authenticated users to manipulate filesystem paths. This vulnerability can lead to arbitrary file reads and deletions, compromising data integrity and confidentiality. Organizations using affected versions should prioritize patching to mitigate potential exploitation risks.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
SiYuan kernel before v3.7.4 contains a path traversal vulnerability in the database_clean MCP tool. The tool performs only an empty-string check on the id parameter before passing it to RemoveUnusedAttributeView (kernel/model/attribute_view.go), which builds a filesystem path via filepath.Join without validating that id matches SiYuan's node-ID format. An authenticated MCP client can supply path traversal sequences in id to cause the kernel to copy an arbitrary file readable by the process into SiYuan's history directory (arbitrary file read) and then delete the original file (arbitrary file deletion). The corresponding HTTP API handler was hardened in GHSA-7hm9-v7vf-7g4w, but this MCP caller was not.