Video Quickstart: Securing Office Add-ins

Welcome to this quickstart video on security best practices for Office Add-ins. In this session, we'll cover essential steps and considerations to ensure your add-ins are secure and protect both your users and your data.

Key Topics Covered:

  • Understanding common security vulnerabilities in web applications.
  • Implementing secure authentication and authorization mechanisms.
  • Sanitizing user input to prevent injection attacks.
  • Handling sensitive data and secrets responsibly.
  • Leveraging Microsoft's security tools and services.
  • Best practices for manifest security.
  • Testing and auditing your add-in's security posture.

Code Example: Input Validation

Here's a simplified example of how you might validate user input in your JavaScript code to prevent common injection attacks. Always ensure thorough validation on both the client and server side.


function sanitizeInput(input) {
    // Basic example: replace potentially harmful characters
    let sanitized = input.replace(//g, ">");
    sanitized = sanitized.replace(/'/g, "'").replace(/"/g, """);
    sanitized = sanitized.replace(/\//g, "/");
    return sanitized;
}

// Example usage:
const userInput = "";
const cleanInput = sanitizeInput(userInput);
console.log("Original:", userInput);
console.log("Sanitized:", cleanInput);

Further Resources:

This video is a starting point. For more in-depth information, please refer to the official Microsoft documentation and community discussions.

Feel free to post any questions you have in the Security sub-forum. Our community and experts are here to help!