Auth bypass in Medivision Digital Signage
CVE-2020-36902
UBICOD Medivision Digital Signage 1.5.1 contains an authorization bypass vulnerability that allows normal users to escalate privileges by manipulating the 'ft[grp]' parameter. Attackers can send a GET request to /html/user with 'ft[grp]' set to integer value '3' to gain super admin rights without authentication.
Vulnerability class: Broken Access Control
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 (65.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.011 · change: -0.000
Affected products
- Medivision Digital Signage
- Medivision Digital Signage Firmware — versions 1.5.1
- Ubicod Co., Ltd. | Medivision Inc. Digital Signage — versions Firmware 1.5.1 (2013.01.3)
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/48684 (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.medivision.co.kr (Product, product)
- www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5575.php (Exploit, vendor-advisory, Third Party Advisory)
- www.vulncheck.com/advisories/ubicod-medivision-digital-signage-authorization-by… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2020-36902?
- CVE-2020-36902 is a critical-severity vulnerability in Medivision Digital Signage, classified under Missing Authorization. CVSS score: 9.8/10. Published 2025-12-10.
- How severe is CVE-2020-36902?
- Critical severity. CVSS v3 base score is 9.8 out of 10.