Critical
CVSS 9.3 CORS Responsible Disclosure
Disclosure
Disclosure Report
| 13 | Password Reset OTP Brute Force (0 rate limit, 500+ attempts) | 8.5 | | 14 | Biometric Authentication Endpoint Discovered (/api/biometric) | 8.5 | | 15 | Nova Files Preview - Potential Arbitrary File Read | 8.5 | | 16 | Bearer Tokens Survive Password Change (persistent ATO)
- Target
- African Crypto Exchange
- Category
- CORS
- Channel
- Responsible Disclosure
- Disclosed
- 2026-04
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.