Auth bypass in Eibiz I-Media Server Digital Signage
CVE-2020-36892
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (63.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: -0.000
Affected products
- Eibiz I-Media Server Digital Signage — versions 3.8.0
- Eibiz Co.,ltd. I-Media Server Digital Signage — versions 0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/48774 (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5584.php (Exploit, vendor-advisory, Third Party Advisory)
- www.eibiz.co.th (technical-description, Broken Link)
- www.vulncheck.com/advisories/eibiz-i-media-server-digital-signage-unauthenticat… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2020-36892?
- CVE-2020-36892 is a critical-severity vulnerability in Eibiz I-Media Server Digital Signage, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2025-12-10.
- How severe is CVE-2020-36892?
- Critical severity. CVSS v3 base score is 9.8 out of 10.