Top 10 web hacking techniques of 2025

2026-07-03T20:51:52Z3160b5451bc0f967c416839f05d72170ae483c44677ad26a5c5d325b905eaa61
Burp-extensionsCSS-exfiltrationHTTP-desynchronisationHTTP-request-smugglingHttpOnlyJWT-forgerySAMLWAF-bypassWebSocket__Host__Secureauthentication-bypasscache-poisoningcookiesrace-conditionsresearch-collectiontoolingweb-application-security

What happened

A collection of PortSwigger Research publications (2024–2026) including the Top 10 Web Hacking Techniques of 2025 and multiple deep-dive research posts. Notable topics include parser-level SAML inconsistencies that enable full authentication bypasses in Ruby/PHP ecosystems (The Fragile Lock, SAML roulette), HTTP desynchronisation/request smuggling and exploitation techniques (HTTP/1.1 must die, TRACE desync), cookie-based attacks (bypassing __Host/__Secure prefixes, cookie-sandwich HttpOnly bypass, phantom $Version WAF bypass), CSS-based data exfiltration, WebSocket fuzzing/exploitation tools,

Why it matters

A reviewed impact interpretation has not been published for this record.

Evidence and limitations

Source ID
portswigger_research
Record identifier
3160b5451bc0f967c416839f05d72170ae483c44677ad26a5c5d325b905eaa61
Enrichment time
2026-07-03T20:51:52Z
AI-assisted enrichment
Yes

This record may overlap with other records. Its enrichment can be incomplete or wrong, and machine assistance was used. Validate consequential decisions against the linked source and your own environment.