CVE-2020-36902
CVE-2020-36902 is a critical-severity vulnerability in Medivision Medivision Digital Signage Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v4: 9.3
- EPSS exploit prediction: 1% (58th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2020-30830
- Weakness: CWE-862
- Affected product: Medivision Medivision Digital Signage Firmware
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2020-36902?
- CVE-2020-36902 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-36902 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-36902?
- CVE-2020-36902 affects Medivision Medivision Digital Signage Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-36902?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2020-36902 have an EU (EUVD) identifier?
- Yes. CVE-2020-36902 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30830.
- When was CVE-2020-36902 published?
- CVE-2020-36902 was published on 2025-12-10 and last updated on 2026-06-17.
References
- http://www.medivision.co.kr
- https://www.exploit-db.com/exploits/48684
- https://www.vulncheck.com/advisories/ubicod-medivision-digital-signage-authorization-bypass-via-user-privileges
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5575.php
Affected products (1)
- cpe:2.3:o:medivision:medivision_digital_signage_firmware:1.5.1:*:*:*:*:*:*:*
More vulnerabilities in Medivision Medivision Digital Signage Firmware
- CVE-2020-36901 — High (CVSS 8.8): UBICOD Medivision Digital Signage 1.5.1 contains a cross-site request forgery vulnerability that allows attackers to…
All CVEs affecting Medivision Medivision Digital Signage Firmware →
Other CWE-862 (Missing Authorization) vulnerabilities
- CVE-2026-0092 — Critical (CVSS 10.0): In Package Manager, there is a possible device lock controller bypass due to a missing permission check. This could…
- CVE-2026-33712 — Critical (CVSS 10.0): Typebot is a chatbot builder tool. In versions 3.15.2 and prior, the preview chat endpoint (POST…
- CVE-2026-2031 — Critical (CVSS 10.0): An Improper Access Control vulnerability in several internal API endpoints for Google Cloud Application Integration…
- CVE-2026-34976 — Critical (CVSS 10.0): Dgraph is an open source distributed GraphQL database. Prior to 25.3.1, the restoreTenant admin mutation is missing…
- CVE-2025-30416 — Critical (CVSS 10.0): Sensitive data disclosure and manipulation due to missing authorization. The following products are affected: Acronis…
- CVE-2025-45854 — Critical (CVSS 10.0): /server/executeExec of JEHC-BPM 2.0.1 allows attackers to execute arbitrary code via execParams.
Browse all CWE-862 (Missing Authorization) vulnerabilities →