{"api_version":"1","generated_at":"2026-07-23T14:53:55+00:00","cve":"CVE-2022-27261","urls":{"html":"https://cve.report/CVE-2022-27261","api":"https://cve.report/api/cve/CVE-2022-27261.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2022-27261","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-27261"},"summary":{"title":"CVE-2022-27261","description":"An arbitrary file write vulnerability in Express-FileUpload v1.3.1 allows attackers to upload multiple files with the same name, causing an overwrite of files in the web application server.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2022-04-12 17:15:00","updated_at":"2023-10-18 16:03:00"},"problem_types":["CWE-434"],"metrics":[],"references":[{"url":"https://www.youtube.com/watch?v=3ROHB3ck4tA","name":"https://www.youtube.com/watch?v=3ROHB3ck4tA","refsource":"MISC","tags":[],"title":"Overwrite-Attack - YouTube","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.npmjs.com/package/express-fileupload","name":"https://www.npmjs.com/package/express-fileupload","refsource":"MISC","tags":[],"title":"express-fileupload  -  npm","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-27261","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-27261","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2022","cve_id":"27261","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"express-fileupload_project","cpe5":"express-fileupload","cpe6":"1.3.1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"node.js","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2022-27261","qid":"995654","title":"NodeJs (Npm) Security Update for express-fileupload (GHSA-w4m6-x6c2-j5c9)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2022-27261","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"An arbitrary file write vulnerability in Express-FileUpload v1.3.1 allows attackers to upload multiple files with the same name, causing an overwrite of files in the web application server."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://www.npmjs.com/package/express-fileupload","refsource":"MISC","name":"https://www.npmjs.com/package/express-fileupload"},{"url":"https://www.youtube.com/watch?v=3ROHB3ck4tA","refsource":"MISC","name":"https://www.youtube.com/watch?v=3ROHB3ck4tA"}]}},"nvd":{"publishedDate":"2022-04-12 17:15:00","lastModifiedDate":"2023-10-18 16:03:00","problem_types":["CWE-434"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:P/A:N","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE","baseScore":4.3},"severity":"MEDIUM","exploitabilityScore":8.6,"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:express-fileupload_project:express-fileupload:1.3.1:*:*:*:*:node.js:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":null,"notes":[]}}}