CVE-2020-36902

Name: CVE-2020-36902
Creator: NVD / NIST
Published: 2025-12-10T21:16:03.037+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.3/10EPSS 0.99%

Last modified Jun 17, 2026

CVE-2020-36902 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. 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.. EPSS estimates a 0.99% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

9.3/10

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.99%

58.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-862

Affected Software

Vendor	Product	Versions
Medivision	Medivision Digital Signage Firmware	1.5.1

References

http://www.medivision.co.krProduct
https://www.exploit-db.com/exploits/48684Exploit, Third Party Advisory, VDB Entry
https://www.vulncheck.com/advisories/ubicod-medivision-digital-signage-authorization-bypass-via-user-privilegesThird Party Advisory
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5575.phpExploit, Third Party Advisory
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5575.phpExploit, Third Party Advisory

Timeline

Published: Dec 10, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2020-36902?

How severe is CVE-2020-36902?

CVE-2020-36902 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 0.99% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36902?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-36902?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST