MCP-for-Stata is an MCP server for Stata to integrate Stata into an agent. Prior to version 1.17.3, the log_file_name parameter in the stata_do API and CLI is directly interpolated into a Stata command string without sanitization. The security guard (GuardValidator) only scans the do-file content but does not validate this parameter. An attacker can inject arbitrary Stata commands (including shell, python, erase, etc.) by crafting a malicious log_file_name containing quotes, newlines, or Stata command separators. Version 1.17.3 contains a patch for the issue.