webProeasy
Lab 186 — DataPulse — CORS Origin Validation Bypass
hackadvisor
Task: Node.js/Express analytics platform with CORS-protected internal API endpoint /api/internal/users restricted to *.datapulse.io origins. Solution: Discover endpoint via dashboard JavaScript source, spoof Origin header to bypass validation, extract flag from admin user's internal_notes field.
$ ls tags/ techniques/
javascript_analysisnodejsaccess_controlnginxexpressapi_securitycorsinternal_apihoneypot_flagcors_bypassorigin_validation
honeypot_flag_identificationcors_origin_header_spoofingjavascript_source_analysis_for_api_discoveryinternal_api_endpoint_enumeration
🔒
Permission denied (requires tier.pro)
Sign in to access full writeups
Sign in with GitHub to continue. No email required.
$sign in$ grep --similar
Similar writeups
- [web][Pro]DevPulse — CSRF via JSON Content-Type Bypass— hackadvisor
- [web][Pro]Lab 322 — NetPulse — IP Spoofing to RCE via Polling Agent API— hackadvisor
- [web][Pro]Lab 63 — DataPulse — Insecure Deserialization via Preferences Cookie— hackadvisor
- [web][Pro]CloudPulse — OAuth CSRF Account Takeover via Missing State Parameter— hackadvisor
- [web][Pro]Lab 233 — PulseAPI — Regex Auth Bypass via Query String Injection— hackadvisor