Practical guide for hunters: how leaked webhooks are abused and how to defend them

I wrote a hands on guide that shows how leaked webhooks surface as an attack vector; how to find them in the wild; how to craft safe non destructive PoCs; how to harden receivers. Includes curl examples for Slack and Discord; Node.js and Go HMAC verification samples; a disclosure template. Why this matters webhooks are often treated as bearer secrets; leaks are common small mistakes in verification or ordering can become business logic bugs many real world impacts are serviceable without flashy RCE What you get in the post threat model and scope guidance detection rules and SIEM ideas Read it here: https://blog.himanshuanand.com/posts/2025-09-17-how-to-hack-webhooks/ Notes: do not test endpoints you do not own. follow program scope and responsible disclosure rules. Happy hunting submitted by /u/unknownhad [link] [comments]Technical Information Security Content & DiscussionRead More