{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-25827 exists.","fix":"No fix has been published for CVE-2021-25827 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-25827 is a critical authentication bypass vulnerability in n/a, published on 28 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-25827 and fix it if it is affected.\n\nWhat it is: CVE-2021-25827 is a critical authentication bypass vulnerability in n/a, published on 28 Jun 2023. 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-2021-25827 exists.\n\nAffected product: n/a. 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-2021-25827/ (Markdown: https://insights.sbomify.com/CVE-2021-25827/index.md)","id":"CVE-2021-25827","markdown":"https://insights.sbomify.com/CVE-2021-25827/index.md","name":"CVE-2021-25827","record":{"aliases":["GHSA-m4q9-68f2-5wc6"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Emby Media Server","requires_auth":"none","summary":"Attackers can bypass authentication by spoofing the X-Forwarded-For header with a local IP address, gaining unauthorized access to the server.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"emby","vendor":"emby"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-290","name":"Authentication Bypass by Spoofing"}],"description":"Emby Server \u003c 4.7.12.0 is vulnerable to a login bypass attack by setting the X-Forwarded-For header to a local IP-address.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Auth bypass in n/a","id":"CVE-2021-25827","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"Cross-site scripting in n/a","id":"CVE-2021-25828"},"packages":[],"prev":{"headline":"Command injection in n/a","id":"CVE-2021-25812"},"products":["n/a"],"published":"2023-06-28","related":[{"cvss_score":9.8,"headline":"Server-side request forgery in n/a","id":"CVE-2020-26948","kev_date_added":null,"published":"2020-10-10"},{"cvss_score":9.3,"headline":"Emby Server allows attackers to gain administrative server access without preconditions","id":"CVE-2025-64113","kev_date_added":null,"published":"2025-12-09"},{"cvss_score":8.4,"headline":"Emby Server is Vulnerable to Remote Code Execution Through XSS in Admin Dashboard","id":"CVE-2025-64325","kev_date_added":null,"published":"2025-11-18"},{"cvss_score":6.1,"headline":"Cross-site scripting in n/a","id":"CVE-2021-25828","kev_date_added":null,"published":"2023-06-28"},{"cvss_score":6.1,"headline":"Cross-site scripting in n/a","id":"CVE-2022-36223","kev_date_added":null,"published":"2022-12-16"}],"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":"2025-02-13","vendors":["n/a"]},"summary":"Attackers can bypass authentication by spoofing the X-Forwarded-For header with a local IP address, gaining unauthorized access to the server.","url":"https://insights.sbomify.com/CVE-2021-25827/"}