| Title | ishayoyo excel-mcp 1.0.2 Path Traversal |
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| Description | An Arbitrary File Read and Write vulnerability was discovered in excel-mcp 1.0.2. The vulnerability exists in multiple MCP tools (including read_file and write_file) within src/index.ts and related handlers. The application accepts caller-controlled file path arguments (e.g., filePath, outputPath) and passes them directly to local filesystem APIs without enforcing a workspace root or sandbox directory. A remote authenticated attacker can exploit this to read sensitive spreadsheet files or write/overwrite arbitrary CSV/XLSX files in any directory writable by the server process, potentially leading to information disclosure or system compromise. |
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| Source | ⚠️ https://github.com/ishayoyo/excel-mcp/issues/6 |
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| User | ccccccctfi (UID 97498) |
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| Submission | 05/11/2026 10:32 (3 months ago) |
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| Moderation | 05/31/2026 18:10 (20 days later) |
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| Status | Accepted |
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| VulDB entry | 367571 [ishayoyo excel-mcp up to 1.0.2 read_file/write_file src/index.ts filePath/outputPath path traversal] |
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| Points | 20 |
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