Zip slip in opencart

published 2024-06-22 2 y ago modified 2026-09-10 1 mo ago also BIT-opencart-2024-21518 , EUVD-2024-2100 , GHSA-m7r8-2r98-vppj

cvss: 7.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 14.1%; EPSS 14.1% chance of exploitation in 30 days, percentile 96%
public exploits: 0; none known

This affects versions of the package opencart/opencart from 4.0.0.0. A Zip Slip issue was identified via the marketplace installer due to improper sanitization of the target path, allowing files within a malicious archive to traverse the filesystem and be extracted to arbitrary locations. An attacker can create arbitrary files in the web root of the application and overwrite other existing files by exploiting this vulnerability.

Patch / fix

links 1

github.com/opencart/opencart/blob/04c1724370ab02967d3b4f668c1b67771ec… patch

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-07-02)

Exploit prediction

14.13% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

security.snyk.io https://security.snyk.io/vuln/SNYK-PHP-OPENCARTOPENCART-7266578 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P
GitHub	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
OSV	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
packagist	opencart/opencart	>=4.0.0.0	no fix listed
bitnami	opencart	>=4.0.0-0	no fix listed

Affected products

n/a opencart/opencart
opencart opencart

Classification

Weakness

CWE-29 Path Traversal: '\..\filename'
CWE-22 Improper Limitation of a Pathname to a Restricted Directory
CWE-290 Authentication Bypass by Spoofing

References

github.com /opencart/opencart/blob/04c1724370ab02967d3b4f668c1b67771ecf1ff4/upload/admin/controller/marketplace/installer
web, patch
security.snyk.io /vuln/SNYK-PHP-OPENCARTOPENCART-7266578
web, exploit, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2024-21518
advisory, web
github.com /opencart/opencart
package

Sources

Fencer Vulns 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