High
CVSS 7.5 Information Disclosure Responsible Disclosure
Disclosure
HIGH - Auth Staging Source Map Exposure (5.7MB, 348 Files, Full Auth Logic)
The staging authentication portal at auth-staging.[vendor] serves source maps containing complete TypeScript source code for the authentication system, including Cognito configuration, MFA flows, card security code validation, password reset logic, and embedded staging credentials
- Target
- European B2B Spend Management
- Category
- Information Disclosure
- 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.