What’s Vulnerable › Vulnerabilities

CVE-2020-36894: Eibiz i-Media Server Digital Signage 3.8.0 Unauthenticated User Creation Vulnerability

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-12-10 · updated 2026-06-17
• Weakness: CWE-306

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.

Affected products

• EIBIZ Co.,Ltd. i-Media Server Digital Signage: 3.8.0

References

• http://www.eibiz.co.th
• https://www.exploit-db.com/exploits/48763
• https://www.vulncheck.com/advisories/eibiz-i-media-server-digital-signage-unauthenticated-user-creation-vulnerability
• https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5586.php
• https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5586.php

Get alerted when CVE-2020-36894 or the next vulnerability affects your stack