express-cart unrestricted file upload vulnerability

published 2018-06-07 8 y ago modified 2026-06-17 4 mo ago also GHSA-4w62-cq5r-5mmq , EUVD-2022-2456

cvss: 8.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 27.1%; EPSS 27.1% chance of exploitation in 30 days, percentile 98%
public exploits: 0; none known

Unrestricted file upload (RCE) in express-cart module before 1.1.7 allows a privileged user to gain access in the hosting machine.

Patch / fix

fixed in 2 links 2

npm express-cart 1.1.7
express-cart_project express-cart 1.1.7

github.com/mrvautin/expressCart@65b18cf commit
hackerone.com/reports/343726 advisory

Exploit prediction

27.07% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

hackerone.com https://hackerone.com/reports/343726 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	9.0	AV:N/AC:L/Au:S/C:C/I:C/A:C
GitHub	3.0	8.8	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
npm	express-cart	<1.1.7	1.1.7

Affected products

HackerOne express-cart

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory
CWE-434 Unrestricted Upload of File with Dangerous Type

References

hackerone.com /reports/343726
web, exploit, patch, third-party-advisory
github.com /mrvautin/expressCart/commit/65b18cfe426fa217aa6ada1d4162891883137893
web
nvd.nist.gov /vuln/detail/CVE-2018-3758
advisory

Sources

CVE List CVE-2018-3758
GitHub Advisory GHSA-4w62-cq5r-5mmq
NVD CVE-2018-3758

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary