ATC_SNOMED_MCP

The server parses user-supplied XML content using `xml.etree.ElementTree.fromstring` without explicitly disabling DTD processing or external entity loading. This may create a potential XML External Entity (XXE) injection vulnerability if malicious XML input is provided. Additionally, the ATC code lookup performs web scraping, which introduces a dependency on external website structure and availability, though it doesn't pose a direct security risk to the server itself. File creation (`generate_output_filename`) is session-based and writes to an 'Output' directory, which is acceptable in this context but not robust against arbitrary path traversal if `input_filename` were directly user-controlled.