Top 10 web hacking techniques of 2025

PortSwigger Research publishes web security research covering authentication bypasses, HTTP desynchronization and request smuggling, cookie and WAF parser discrepancies, CSS and XSS data exfiltration, URL validation bypasses, cache poisoning, race conditions, access-control flaws, token forgery, and browser or parser inconsistencies. The feed includes high-impact techniques such as SAML authentication bypasses affecting Ruby/PHP ecosystems and GitLab Enterprise deployments, HttpOnly cookie theft, HTTP/1.1 desync attacks, and CSP bypasses. The document is a research index rather than a report,;