One MCP server that enables LLM agents to read, post, comment, and engage on forums, comment sections, and social media as the user, for marketing, SEO research, and community engagement.
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
axios Vulnerable to Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`
axios Vulnerable to Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Merge
process.env. You'll be asked to provide them before it can run.SUBSTACK_PUBLICATION_URL— "": "https://yourname.substack.com",SUBSTACK_SESSION_TOKEN— "": "...",SUBSTACK_USER_ID— ✅ Numeric Substack user idSUBSTACK_USE_CHROME— optional Set to 1 to prefer installed Chrome over bundled Chromium for Notes[](https://m8ven.ai/mcp/jefflee1990710-hyperpage-mcp-168o9e)