Introducing the URL validation bypass cheat sheet

PortSwigger ResearchSeptember 3, 2024

URL validation bypasses are the root cause of numerous vulnerabilities including many instances of SSRF, CORS misconfiguration, and open redirection. These work by using ambiguous URLs to trigger URL

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WeaknessServer-side request forgery · SSRFMaking a server fetch a URL of the attacker's choosing, often one inside the private network.