Vulnerable code sample

import os
import sys

# This code is a representation of the vulnerable logic in PraisonAI <= 4.5.138.
# The vulnerability lies in the automatic and unsanitized import of a file
# named 'tools.py' from the current working directory upon application startup.

def import_tools_from_file():
    """
    This function represents a vulnerable component, like in call.py,
    that blindly imports a `tools.py` file from the current directory.
    """
    if os.path.isfile("tools.py"):
        try:
            # VULNERABLE ACTION: Unsanitized import from the current working directory.
            # Any code within 'tools.py' is executed upon this import.
            import tools
        except ImportError:
            # The application might ignore import errors, but the import attempt
            # is what executes the malicious code.
            pass

class ToolResolver:
    """
    This class represents a component like tool_resolver.py.
    """

    def _load_local_tools(self):
        """
        This function represents another vulnerable component that loads
        tools from the local 'tools.py'.
        """
        # Ensure the current working directory is in the Python path.
        # This is often the default behavior when running a script.
        if '.' not in sys.path:
            sys.path.insert(0, '.')

        if os.path.exists("tools.py"):
            try:
                # VULNERABLE ACTION: The application imports the module,
                # executing any code at the top level of the 'tools.py' file.
                import tools
            except ImportError:
                pass

    def resolve_tools(self):
        # In the full application, this would be part of a larger process.
        # We call the vulnerable function to simulate the startup behavior.
        self._load_local_tools()

# In the actual PraisonAI application, one of these vulnerable functions
# would be called during the initialization sequence, for example:

# 1. Direct call (simulating CLI tool loading)
# import_tools_from_file()

# 2. Class-based call (simulating agent initialization)
# resolver = ToolResolver()
# resolver.resolve_tools()