High
CVSS 8.8 Credential Exposure Responsible Disclosure
Disclosure
CORS Origin Reflection + Credentials on Server Management Panel (CRITICAL)
Finding 1: CORS Origin Reflection + Credentials on Server Management Panel (CRITICAL) CRITICAL (CVSS 8.8) — AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H platform.[redacted].com üzerindeki Tenantos server management paneli, gelen HER Origin header'ını `Access-Control-Allow-Origin` response h
- Target
- Web Hosting Provider
- Category
- Credential Exposure
- 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.