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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.

PUBLISHED Reserved 2025-12-09 | Published 2025-12-10 | Updated 2025-12-11 | Assigner VulnCheck




CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-306 Missing Authentication for Critical Function

Product status

Default status
unaffected

Any version
affected

Credits

LiquidWorm as Gjoko Krstic of Zero Science Lab finder

References

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

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

www.exploit-db.com/exploits/48774 (ExploitDB-48774) exploit

www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5584.php (Vulnerability Advisory) vendor-advisory

www.eibiz.co.th (Reference) technical-description

www.vulncheck.com/...ge-unauthenticated-privilege-escalation (VulnCheck Advisory: Eibiz i-Media Server Digital Signage 3.8.0 Unauthenticated Privilege Escalation) third-party-advisory

cve.org (CVE-2020-36892)

nvd.nist.gov (CVE-2020-36892)

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