🎯 Advanced Bug Bounty Tip: Hunt Web Cache Poisoning via Unkeyed Inputs
CDNs/caches often key on the URL + a few headers — while ignoring others like:
→ "X-Forwarded-Host"
→ "X-Original-URL"
→ "Accept-Language"
If the origin reflects an unkeyed input into the response, you may be able to poison the cached response for other visitors.
🔎 Workflow:
1️⃣ Find a reflected/unkeyed input with Param Miner
2️⃣ Confirm it’s unkeyed using random cache-busters
3️⃣ Inject a controlled payload, e.g. "X-Forwarded-Host"
4️⃣ Test for impact such as poisoned redirects or XSS
5️⃣ Verify the poisoned response is served to subsequent requests sharing the cache key
One overlooked header can turn a low-impact reflection into a mass-impact vulnerability.
#BugBounty #AppSec #WebCache #WebSecurity #CyberSecurity
Finding an SQL Database without SQL Injection ?
Tips:
1-Enumerate all subdomains u can.
2- Collect URLs using tools like:
katana,gau,waybackurls,urlfinder
3-Merge and deduplicate all discovered URLs.
4-Search for sensitive files and keywords such as:
.sql .db .bak .zip .env
JavaScript Recon → Valid HTML Injection
1/7
Most bug bounty hunters stop after finding interesting JavaScript files.
Here's the methodology I followed. 👇
#BugBounty#JavaScript#AppSec