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Vulnerability record · CVE-2022-27261 · published 12 April 2022

CVE-2022-27261: Express-fileupload project express-fileupload unrestricted file upload vulnerability

EExpress Fileupload Project · Express Fileupload

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.

7.5 CVSS 3.1 High EPSS 1.4% · top 29.0% CWE-434 · Unrestricted file upload
7.5CVSS 3.1 base score, v2 4.3
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.npmjs.com/package/express-fileupload Third Party Advisory
https://www.youtube.com/watch?v=3ROHB3ck4tA ExploitThird Party Advisory
https://www.npmjs.com/package/express-fileupload Third Party Advisory
https://www.youtube.com/watch?v=3ROHB3ck4tA ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-27261), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.