# Top 10 web hacking techniques of 2025

DevFeed: [Top 10 web hacking techniques of 2025](<https://devfeed.tech/articles/top-10-web-hacking-techniques-of-2025-7712.md>)

Original publisher: [Read original article](<https://portswigger.net/research/top-10-web-hacking-techniques-of-2025>)

Author: James Kettle

Published: 2026-02-05T15:28:08Z

Content type: article

Language: en

Sources: [PortSwigger Research](<https://devfeed.tech/sources/portswigger-research.md>)

Topics: [Security](<https://devfeed.tech/topics/security.md>), [Web](<https://devfeed.tech/topics/web.md>), [vulnerability](<https://devfeed.tech/topics/vulnerability.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [Protocol (disambiguation)](<https://devfeed.tech/topics/protocol.md>), [Chrome](<https://devfeed.tech/topics/chrome.md>), [Caching](<https://devfeed.tech/topics/caching.md>), [Tooling](<https://devfeed.tech/topics/tooling.md>)

Tags: [cache](<https://devfeed.tech/tags/cache.md>), [chrome](<https://devfeed.tech/tags/chrome.md>), [community](<https://devfeed.tech/tags/community.md>), [http](<https://devfeed.tech/tags/http.md>), [research](<https://devfeed.tech/tags/research.md>), [security](<https://devfeed.tech/tags/security.md>), [techniques](<https://devfeed.tech/tags/techniques.md>), [vulnerability](<https://devfeed.tech/tags/vulnerability.md>), [web](<https://devfeed.tech/tags/web.md>)

## AI overview

This annual, community-powered selection highlights ten innovative web-hacking techniques from 2025. The supplied excerpts discuss parser differentials, HTTP/2 CONNECT research and tooling, Chrome connection-pool prioritisation used to leak cross-origin redirect hostnames, and internal web cache poisoning.

## Source excerpt

Welcome to the Top 10 Web Hacking Techniques of 2025, the 19th edition of our annual community-powered effort to identify the most innovative must-read web security research published in the last year