Security & Best Practices
XSS protection, CSRF, sanitization, DomSanitizer, Content Security Policy, authentication, authorization, JWT
1What is an XSS (Cross-Site Scripting) attack?
What is an XSS (Cross-Site Scripting) attack?
Answer
An XSS attack involves injecting malicious JavaScript code into a web application to execute it in users' browsers. The attacker exploits validation flaws to steal sensitive data (cookies, tokens) or manipulate the DOM. Angular automatically protects against this type of attack through sanitization of content injected into templates.
2How does Angular automatically protect against XSS attacks?
How does Angular automatically protect against XSS attacks?
Answer
Angular automatically sanitizes all values injected into templates via interpolation or property binding. The DomSanitizer analyzes the content and removes any potentially dangerous code before displaying it. This protection is applied by default without additional configuration, ensuring that untrusted HTML, URLs, and styles are cleaned.
3What is the DomSanitizer in Angular?
What is the DomSanitizer in Angular?
Answer
DomSanitizer is an Angular service that cleans untrusted content before injecting it into the DOM. It analyzes HTML, URLs, styles, and scripts to detect and remove potentially dangerous elements. This service also provides bypassSecurityTrust* methods to explicitly mark content as safe when the source is trusted and verified.
In which contexts does Angular apply automatic sanitization?
What is a CSRF (Cross-Site Request Forgery) attack?
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