High
CVSS 8.6 Information Disclosure Responsible Disclosure
Disclosure
DeveloperExceptionPage Enabled in Production (redeem-cards.com)
ASP.NET Core DeveloperExceptionPageMiddleware is enabled in production. Every unhandled exception returns complete .NET stack traces with source file paths, line numbers, method signatures, the entire middleware pipeline, all HTTP request headers (including real IPs), and internal application architecture
- Target
- EU Gaming Key Marketplace
- Category
- Information Disclosure
- 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.