Top 10 web hacking techniques of 2025
2026-06-08T08:51:59Z•759c8cc5532e1b70b43f3eea05e85e824577debe47939157754c6e3c35113e46
AI-assisted-testingBurp-extensionsCSS-exfiltrationHTTP-desyncHttpOnly-bypassJWTPDF-rendering-discrepanciesSAMLSignSaboteurTRACEURL-validation-bypassWAF-bypassWebSocket-security__Host-__Secureattribute-pollutionauthentication-bypasscache-poisoningcookie-prefix-bypassnamespace-confusionrequest-smugglingresearch-rounduptiming-attacksunicode-overflowweb-security
What happened
PortSwigger Research published a roundup (Top 10 Web Hacking Techniques of 2025) and a series of detailed write-ups covering high-impact web attack techniques and tools. Notable research includes full authentication bypasses in SAML implementations via parser inconsistencies (attribute pollution, namespace confusion), multiple HTTP desync/request-smuggling advances (including TRACE-aided exploits and a “desync endgame”), cookie prefix and HttpOnly bypass techniques, CSS-based data exfiltration, JWT forgery tooling (SignSaboteur), WebSocket testing improvements, cache exploitation, Unicode-over
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- portswigger_research
- Record identifier
- 759c8cc5532e1b70b43f3eea05e85e824577debe47939157754c6e3c35113e46
- Enrichment time
- 2026-06-08T08:51:59Z
- 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.