# Damn Vulnerable MCP Server Demo

> Use this tool when you need to demonstrate and educate on common security vulnerabilities in server implementations, such as Remote Code Execution, and understand how poor coding practices can lead to security issues. It takes input in the form of numbers to add, and outputs the result, while intentionally exposing security flaws for educational purposes. Ideal for use in controlled environments to teach secure coding practices and vulnerability assessment.

Canonical page: https://skillsregistry.net/skills/pfelilpe-dvmcp  
JSON: https://api.skillsregistry.net/v1/skills/pfelilpe-dvmcp

## Description

A vulnerable MCP server implementation that demonstrates how poor coding practices can lead to security issues like Remote Code Execution, designed for educational purposes to add numbers.

## Trust

- **Trust score (0–1):** 0.91
- **Verification tier:** scanned
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** security
- **Updated:** 2026-09-28

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/dnr59jaovc)
- **Repository:** <https://github.com/pfelilpe/DVMCP>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "pfelilpe-dvmcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/pfelilpe-dvmcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/pfelilpe-dvmcp/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt