CVE-2020-36894

HIGH

Eibiz i-Media Server Digital Signage 3.8.0 - Auth Bypass

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-36894. PoCs published by LiquidWorm.

AI-analyzed exploit summary This exploit leverages unauthenticated AMF deserialization to create an admin user without authentication in Eibiz i-Media Server Digital Signage. The crafted AMF packet bypasses security controls to add a user with arbitrary privileges.

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.

Exploits (1)

exploitdb WORKING POC
by LiquidWorm · textwebappshardware
https://www.exploit-db.com/exploits/48763

This exploit leverages unauthenticated AMF deserialization to create an admin user without authentication in Eibiz i-Media Server Digital Signage. The crafted AMF packet bypasses security controls to add a user with arbitrary privileges.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: Eibiz i-Media Server Digital Signage <=3.8.0
No auth needed
Prerequisites: Network access to the target server · Target running vulnerable version of Eibiz i-Media Server
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit, Third Party Advisory, VDB Entry exploit
https://www.exploit-db.com/exploits/48763
Exploit, Third Party Advisory vendor-advisory
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5586.php
Broken Link technical-description
http://www.eibiz.co.th

Scores

CVSS v3 7.5
EPSS 0.0070
EPSS Percentile 48.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-306
Status published
Products (2)
eibiz/i-media_server_digital_signage 3.8.0
EIBIZ Co.,Ltd./i-Media Server Digital Signage < 3.8.0
Published Dec 10, 2025
Tracked Since Feb 18, 2026