High
CVSS 7.5 Information Disclosure Responsible Disclosure
Disclosure
Source Map Exposure - Full Application Source Code (HIGH)
Finding 4: Source Map Exposure - Full Application Source Code (HIGH) JavaScript source maps (.js.map) are exposed on ALL environments (production, staging, admin, agent), revealing the complete application source code including API endpoints, authentication logic, business logic,
- Target
- EU iGaming Operator
- 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.