{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2020-36892", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2025-12-09T11:46:53.451Z", "datePublished": "2025-12-10T20:52:17.172Z", "dateUpdated": "2026-04-07T14:04:59.871Z" }, "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "i-Media Server Digital Signage", "vendor": "EIBIZ Co.,Ltd.", "versions": [ { "lessThanOrEqual": "3.8.0", "status": "affected", "version": "0", "versionType": "semver" } ] } ], "credits": [ { "lang": "en", "type": "finder", "value": "LiquidWorm as Gjoko Krstic of Zero Science Lab" } ], "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "

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.

" } ], "value": "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." } ], "metrics": [ { "cvssV4_0": { "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 9.3, "baseSeverity": "CRITICAL", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-306", "description": "CWE-306 Missing Authentication for Critical Function", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-04-07T14:04:59.871Z" }, "references": [ { "name": "ExploitDB-48774", "tags": [ "exploit" ], "url": "https://www.exploit-db.com/exploits/48774" }, { "name": "Vulnerability Advisory", "tags": [ "vendor-advisory" ], "url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5584.php" }, { "name": "Reference", "tags": [ "technical-description" ], "url": "http://www.eibiz.co.th" }, { "name": "VulnCheck Advisory: Eibiz i-Media Server Digital Signage 3.8.0 Unauthenticated Privilege Escalation", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/eibiz-i-media-server-digital-signage-unauthenticated-privilege-escalation" } ], "source": { "discovery": "UNKNOWN" }, "title": "Eibiz i-Media Server Digital Signage 3.8.0 Unauthenticated Privilege Escalation", "x_generator": { "engine": "vulncheck" }, "datePublic": "2020-08-28T00:00:00.000Z" }, "adp": [ { "references": [ { "url": "https://www.exploit-db.com/exploits/48774", "tags": [ "exploit" ] }, { "url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5584.php", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2025-12-11T16:02:39.599533Z", "id": "CVE-2020-36892", "options": [ { "Exploitation": "poc" }, { "Automatable": "yes" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-12-11T18:53:30.270Z" } } ] } }