{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36894 exists.","fix":"No fix has been published for CVE-2020-36894 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-36894 is a critical authentication bypass vulnerability in EIBIZ Co.,Ltd. i-Media Server Digital Signage, published on 10 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-36894 and fix it if it is affected.\n\nWhat it is: CVE-2020-36894 is a critical authentication bypass vulnerability in EIBIZ Co.,Ltd. i-Media Server Digital Signage, published on 10 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36894 exists.\n\nAffected product: EIBIZ Co.,Ltd. i-Media Server Digital Signage. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2020-36894/ (Markdown: https://insights.sbomify.com/CVE-2020-36894/index.md)","id":"CVE-2020-36894","markdown":"https://insights.sbomify.com/CVE-2020-36894/index.md","name":"CVE-2020-36894","record":{"aliases":["GHSA-7jj4-vc4f-6gq7"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["privilege_escalation","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Digital Signage Server","requires_auth":"none","summary":"Unauthenticated attackers can create admin users via AMF manipulation, leading to full system compromise.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"i-media_server_digital_signage","vendor":"eibiz"}],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"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"},"cwes":[{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"}],"description":"Eibiz i-Media Server Digital Signage 3.8.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to create admin users through AMF-encoded object manipulation. Attackers can send crafted serialized objects to the /messagebroker/amf endpoint to create administrative users without authentication, bypassing security controls.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Eibiz i-Media Server Digital Signage 3.8.0 Unauthenticated User Creation Vulnerability","id":"CVE-2020-36894","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2020"},"n_packages":0,"n_references":4,"next":{"headline":"EIBIZ i-Media Server Digital Signage 3.8.0 Unauthenticated Configuration Disclosure","id":"CVE-2020-36895"},"packages":[],"prev":{"headline":"Eibiz i-Media Server Digital Signage 3.8.0 Directory Traversal Vulnerability","id":"CVE-2020-36893"},"products":["i-Media Server Digital Signage"],"published":"2025-12-10","related":[{"cvss_score":9.3,"headline":"Eibiz i-Media Server Digital Signage 3.8.0 Unauthenticated Privilege Escalation","id":"CVE-2020-36892","kev_date_added":null,"published":"2025-12-10"},{"cvss_score":8.7,"headline":"Eibiz i-Media Server Digital Signage 3.8.0 Directory Traversal Vulnerability","id":"CVE-2020-36893","kev_date_added":null,"published":"2025-12-10"},{"cvss_score":8.7,"headline":"EIBIZ i-Media Server Digital Signage 3.8.0 Unauthenticated Configuration Disclosure","id":"CVE-2020-36895","kev_date_added":null,"published":"2025-12-10"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-01","vendors":["EIBIZ Co.,Ltd."]},"summary":"Unauthenticated attackers can create admin users via AMF manipulation, leading to full system compromise.","url":"https://insights.sbomify.com/CVE-2020-36894/"}