{"cve":"CVE-2022-27261","nvd":{"published":"2022-04-12T17:15:09.973","modified":"2026-06-17T04:36:37.007","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-434"],"references":["https://www.npmjs.com/package/express-fileupload","https://www.youtube.com/watch?v=3ROHB3ck4tA","https://www.npmjs.com/package/express-fileupload","https://www.youtube.com/watch?v=3ROHB3ck4tA"],"products":["express-fileupload_project:express-fileupload"],"source":"nvd","synced_at":"2026-10-19T21:30:03.577988018+00:00"},"epss":{"cve":"CVE-2022-27261","score":0.01381,"percentile":0.72144,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-w4m6-x6c2-j5c9","url":"https://osv.dev/vulnerability/GHSA-w4m6-x6c2-j5c9","summary":"Express-FileUpload Arbitrary File Overwrite","modified":"2023-11-08T04:08:58.051087Z","packages":[{"ecosystem":"npm","name":"express-fileupload","purl":"pkg:npm/express-fileupload","ranges":["<=1.3.1"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}