High
CVSS 7.8 Access Control Responsible Disclosure
Disclosure
Payment API Endpoints Accessible Without Authentication (HIGH)
Finding 5: Payment API Endpoints Accessible Without Authentication (HIGH) The payment service API exposes sensitive endpoints including order management, refund processing, and balance queries. While a signature is required, the signing key is already exposed (Finding 2). Accessi
- Target
- Gaming Marketplace
- Category
- Access Control
- Channel
- Responsible Disclosure
- Disclosed
- 2026-03
Redaction note
Vendor identity withheld.
This finding is documented here as part of MemCyber’s public disclosure record. The vendor has been anonymized to a sector and region descriptor. Full technical detail — including root cause, reproducible proof-of-concept, remediation guidance, and vendor attribution where granted — is available to qualified prospects under NDA.
Coordinated disclosure
How we handled it.
- Reported to the vendor via Responsible Disclosure with a reproducible proof-of-concept.
- Triage + remediation window coordinated with the vendor security team.
- Fix verified before any public reference.
- This record published only after the embargo period closed.