{"api_version":"1","generated_at":"2026-04-23T09:38:53+00:00","cve":"CVE-2020-28481","urls":{"html":"https://cve.report/CVE-2020-28481","api":"https://cve.report/api/cve/CVE-2020-28481.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-28481","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-28481"},"summary":{"title":"CVE-2020-28481","description":"The package socket.io before 2.4.0 are vulnerable to Insecure Defaults due to CORS Misconfiguration. All domains are whitelisted by default.","state":"PUBLIC","assigner":"report@snyk.io","published_at":"2021-01-19 15:15:00","updated_at":"2021-01-28 17:48:00"},"problem_types":["CWE-346"],"metrics":[],"references":[{"url":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1056357","name":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1056357","refsource":"MISC","tags":["Third Party Advisory"],"title":"Insecure Defaults in org.webjars.npm:socket.io | Snyk","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1056358","name":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1056358","refsource":"MISC","tags":["Third Party Advisory"],"title":"Insecure Defaults in org.webjars.bower:socket.io | Snyk","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/socketio/socket.io/issues/3671","name":"https://github.com/socketio/socket.io/issues/3671","refsource":"MISC","tags":["Exploit","Third Party Advisory"],"title":"CORS Misconfiguration in socket.io · Issue #3671 · socketio/socket.io · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://snyk.io/vuln/SNYK-JS-SOCKETIO-1024859","name":"https://snyk.io/vuln/SNYK-JS-SOCKETIO-1024859","refsource":"MISC","tags":["Third Party Advisory"],"title":"Insecure Defaults in socket.io | Snyk","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-28481","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-28481","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"LEGACY","value":"ni8walk3r","lang":""}],"nvd_cpes":[{"cve_year":"2020","cve_id":"28481","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"socket","cpe5":"socket.io","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"node.js","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"28481","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"socket","cpe5":"socket.io","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"node.js","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2020-28481","qid":"982966","title":"Nodejs (npm) Security Update for socket.io (GHSA-fxwf-4rqh-v8g3)"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ASSIGNER":"report@snyk.io","DATE_PUBLIC":"2021-01-19T14:44:58.073500Z","ID":"CVE-2020-28481","STATE":"PUBLIC","TITLE":"Insecure Defaults"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"socket.io","version":{"version_data":[{"version_affected":"<","version_value":"2.4.0"}]}}]},"vendor_name":"n/a"}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Insecure Defaults"}]}]},"references":{"reference_data":[{"refsource":"MISC","url":"https://snyk.io/vuln/SNYK-JS-SOCKETIO-1024859","name":"https://snyk.io/vuln/SNYK-JS-SOCKETIO-1024859"},{"refsource":"MISC","url":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1056357","name":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1056357"},{"refsource":"MISC","url":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1056358","name":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1056358"},{"refsource":"MISC","url":"https://github.com/socketio/socket.io/issues/3671","name":"https://github.com/socketio/socket.io/issues/3671"}]},"description":{"description_data":[{"lang":"eng","value":"The package socket.io before 2.4.0 are vulnerable to Insecure Defaults due to CORS Misconfiguration. All domains are whitelisted by default."}]},"impact":{"cvss":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE"}},"credit":[{"lang":"eng","value":"ni8walk3r"}]},"nvd":{"publishedDate":"2021-01-19 15:15:00","lastModifiedDate":"2021-01-28 17:48:00","problem_types":["CWE-346"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.8,"impactScore":1.4},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:P/I:N/A:N","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":4},"severity":"MEDIUM","exploitabilityScore":8,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:socket:socket.io:*:*:*:*:*:node.js:*:*","versionEndExcluding":"2.4.0","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2020","CveId":"28481","Ordinal":"190968","Title":"CVE-2020-28481","CVE":"CVE-2020-28481","Year":"2020"},"notes":[{"CveYear":"2020","CveId":"28481","Ordinal":"1","NoteData":"The package socket.io before 2.4.0 are vulnerable to Insecure Defaults due to CORS Misconfiguration. All domains are whitelisted by default.","Type":"Description","Title":null},{"CveYear":"2020","CveId":"28481","Ordinal":"2","NoteData":"2021-01-19","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"28481","Ordinal":"3","NoteData":"2021-01-19","Type":"Other","Title":"Modified"}]}}}