Lab 310 — PlanForge

hackadvisor

Task: SaaS platform with tiered subscriptions hiding flag behind premium features, broken authorization on plan change API. Solution: discovered hidden API endpoints in JS comments, upgraded plan without payment via broken access control, extracted flag from premium analytics export system audit log.

javascript_analysis nodejs information_disclosure express api_security broken_access_control subscription_bypass hidden_plan honeypot_decoy analytics_export

api_enumerationjavascript_source_analysissubscription_tier_bypasshidden_resource_discoverydecoy_flag_evasionbroken_authorizationsensitive_data_exposure

$ ls tags/ techniques/

javascript_analysis nodejs information_disclosure express api_security broken_access_control subscription_bypass hidden_plan honeypot_decoy analytics_export

api_enumerationjavascript_source_analysissubscription_tier_bypasshidden_resource_discoverydecoy_flag_evasionbroken_authorizationsensitive_data_exposure

Analysis

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$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

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