Top 10 web hacking techniques of 2025

2026-03-09T20:52:06Z97d5212536d79e53e8a6c3d2dc8ee25114a43dba4ca4dfae0bef369ca6c8fbf1
SAMLai-assisted-testingauthentication-bypassburp-extensionscache-exploitationcookie-prefix-bypasscss-exfiltrationhttp-desynchttponly-bypassjwt-forgerynamespace-confusionparser-discrepancypdf-rendering-discrepanciesrace-conditionsrequest-smugglingtiming-attackstoolingwaf-bypassweb-securitywebsocket-security

What happened

Collection of PortSwigger Research posts (2024–2026) describing numerous novel web-security techniques and tooling. Highlights include parser-level SAML inconsistencies that enable full authentication bypasses in Ruby/PHP SAML stacks and GitLab, HTTP/1.1 desync and request-smuggling exploitation techniques, cookie-prefix and HttpOnly bypass methods, CSS-based data exfiltration, WebSocket analysis and exploitation, JWT forging (SignSaboteur), cache exploitation, timing and race-condition attacks, browser rendering discrepancies (PDFs), and new Burp AI/automation extensions (Repeater Strike, Re‑

Why it matters

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

Evidence and limitations

Source ID
portswigger_research
Record identifier
97d5212536d79e53e8a6c3d2dc8ee25114a43dba4ca4dfae0bef369ca6c8fbf1
Enrichment time
2026-03-09T20:52:06Z
AI-assisted enrichment
Yes

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Record · Top 10 web hacking techniques of 2025 · Baitaphish