csp-bypass-advanced

To test CSP bypass vulnerabilities, analyze the target page's policy to identify missing directives like base-uri or form-action, then map bypass vectors across script-src, nonce, and strict-dynamic to evaluate policy resilience.

A CSP bypass exploits misconfigured or brittle Content Security Policy directives to execute unauthorized scripts. Data exfiltration occurs when bypass pathways allow malicious code to transmit sensitive data outside intended boundaries.

Yes, you can bypass CSP strict-dynamic and nonce-based script-src restrictions by mapping framework integrations like Angular or Vue, which often provide execution pathways circumventing these specific directive controls.

Commonly missing CSP directives that leave web apps vulnerable include base-uri, form-action, and frame-ancestors. Analyzing missing directives helps identify bypass pathways and exfiltration risks in real-world web applications.

The best way to assess CSP resilience against framework-based bypasses is to map and reason about bypass vectors across script-src, nonce, strict-dynamic, and framework integrations like Angular and Vue to uncover specific risk pathways.

Your CSP policy may allow data exfiltration despite script-src restrictions due to missing directives like base-uri or form-action, or because of framework-specific bypass vectors circumventing nonce and strict-dynamic controls.