CVE-2020-36902

Medivision Digital Signage Firmware broken access control

9.8 CRITICALPublic exploitEPSS 1.14%

Published10 Dec 2025

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.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Medivision Digital Signage Firmware1.5.1

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

https://www.exploit-db.com/exploits/48684ExploitThird Party AdvisoryVDB 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.phpExploitThird Party Advisory
http://www.medivision.co.krProduct

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2020-36902 being actively exploited?

CVE-2020-36902 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.14%.

How severe is CVE-2020-36902?

CVE-2020-36902 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 1.14% probability of exploitation.

Which products are affected by CVE-2020-36902?

Affected products include Medivision Digital Signage Firmware.

How do I fix CVE-2020-36902?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2020-36902 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.