CVE-2020-36892

critical

Description

Eibiz i-Media Server Digital Signage 3.8.0 contains an unauthenticated privilege escalation vulnerability in the updateUser object that allows attackers to modify user roles. Attackers can exploit the /messagebroker/amf endpoint to elevate privileges and take over user accounts by manipulating role settings without authentication.

References

https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5584.php

https://www.vulncheck.com/advisories/eibiz-i-media-server-digital-signage-unauthenticated-privilege-escalation

https://www.exploit-db.com/exploits/48774

http://www.eibiz.co.th

Details

Source: Mitre, NVD

Published: 2025-12-10

Updated: 2025-12-11

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 9.3

Vector: 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

Severity: Critical

EPSS

EPSS: 0.0008