CVE-2020-36894
Eibiz i-Media Server Digital Signage 3.8.0 Unauthenticated User Creation Vulnerability
- State
- Published
- Severity
- 9.3 Critical
- Published
- Dec 10, 2025
- Updated
- Oct 1, 2026
- Reserved
- Dec 9, 2025
Description
Eibiz i-Media Server Digital Signage 3.8.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to create admin users through AMF-encoded object manipulation. Attackers can send crafted serialized objects to the /messagebroker/amf endpoint to create administrative users without authentication, bypassing security controls.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
Weaknesses
- CWE-306 Missing Authentication for Critical Function
Affected Products
| Product | Versions |
|---|---|
i-Media Server Digital SignageEIBIZ Co.,Ltd. |
|
References
- ExploitDB-48763exploit
- Vulnerability Advisoryvendor-advisory
- Referencetechnical-description
- VulnCheck Advisory: Eibiz i-Media Server Digital Signage 3.8.0 Unauthenticated User Creation Vulnerabilitythird-party-advisory
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