Top 10 web hacking techniques of 2025

2026-05-11T20:52:07Z2aac384b3f44bd5f53080870746d8061a5569f8bb43c218540b08534a854accc
CSP-bypass','form-hijacking'CSS-exfiltrationGitLabHTTP-desyncHttpOnly-bypassJWTJWT-forgerySAMLSSRFSignSaboteurTRACEURL-validation-bypassWebSocket__Host__Secureauthentication-bypassblind-csscache-poisoningcookie-prefix-bypasscookie-sandwichphp-samlrequest-smugglingresearch-collectionruby-samlweb-security

What happened

A PortSwigger Research collection (2024–2026) cataloguing novel web attack techniques, exploit primitives and tooling. Key high-impact findings include parser/namespace inconsistencies that enable full SAML authentication bypasses (Ruby/PHP ecosystems — unauthenticated admin access on GitLab demonstrated), widespread HTTP/1.1 desynchronisation and request-smuggling/desync exploitation (including TRACE-based exploitation), cookie-prefix and HttpOnly bypass techniques, cache/URL-validation/SSRF abuses, CSS-based data exfiltration, JWT signing forgery tooling (SignSaboteur), WebSocket blind spots

Why it matters

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

Evidence and limitations

Source ID
portswigger_research
Record identifier
2aac384b3f44bd5f53080870746d8061a5569f8bb43c218540b08534a854accc
Enrichment time
2026-05-11T20:52:07Z
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.

Record · Top 10 web hacking techniques of 2025 · Baitaphish