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CSP Evaluator allows developers and security experts to check if a Content Security Policy (CSP) serves as a strong mitigation against cross-site scripting attacks. It assists with the process of reviewing CSP policies, which is usually a manual task, and helps identify subtle CSP bypasses which undermine the value of a policy. CSP Evaluator checks are based on a large-scale study and are aimed to
This article lists the most important security headers you can use to protect your website. Use it to understand web-based security features, learn how to implement them on your website, and as a reference for when you need a reminder. Security headers recommended for websites that handle sensitive user data: Content Security Policy (CSP) Trusted Types Security headers recommended for all websites
AI & MLLearn about artificial intelligence and machine learning across the GitHub ecosystem and the wider industry. Generative AILearn how to build with generative AI. GitHub CopilotChange how you work with GitHub Copilot. LLMsEverything developers need to know about LLMs. Machine learningMachine learning tips, tricks, and best practices. How AI code generation worksExplore the capabilities and be
Mitigate cross-site scripting (XSS) with a strict Content Security Policy (CSP) Stay organized with collections Save and categorize content based on your preferences. Cross-site scripting (XSS), the ability to inject malicious scripts into a web app, has been one of the biggest web security vulnerabilities for over a decade. Content Security Policy (CSP) is an added layer of security that helps to
The goal of this document is to help operational teams with creating secure web applications. All Mozilla sites and deployments are expected to follow the recommendations below. Use of these recommendations by the public is strongly encouraged. The Security Assurance team maintains this document as a reference guide. Table of Contents Cheat Sheet Transport Layer Security (TLS/SSL) HTTPS HTTP Stric
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Welcome to yet another XSS challenge. This time, you, the fellow contestant, are confronted with a powerful adversary: The Content Security Policy. CSP is cool. Even if the websites in scope are injectable, an attacker cannot do no nothing no more. Perfect. Let's throw escaping, encoding and filtering overboard because the magic headers will protect us! Yay :D But is CSP really that powerful? Will
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