What are the limitations of Content Security Policy?

What are the limitations of Content Security Policy?

Content Security Policy (CSP) helps prevent various attacks, but it has limitations. For instance, it can't protect against all types of XSS attacks, especially if the application has vulnerabilities that allow script injection.

Can CSP prevent all XSS attacks?

No, CSP can significantly reduce the risk of XSS, but it cannot eliminate it entirely. If an application has other vulnerabilities, attackers may still find ways to execute malicious scripts.

What are some common misconfigurations in CSP?

Common misconfigurations include overly permissive directives, such as using 'unsafe-inline' or 'unsafe-eval', which can weaken the policy's effectiveness.

How can I test if my CSP is working correctly?

You can use browser developer tools to check the CSP headers and monitor for any violations. Tools like CSP Evaluator can also help assess your policy.

Are there any tools to help implement CSP?

Yes, there are several tools available, such as CSP Generator, which helps create CSP headers, and various browser extensions that can assist in testing and monitoring CSP.