CVE-2024-21518Public exploitNetwork attack vector

Authenticated code execution via traversal archive extraction

Published Jun 22, 2024 · Updated Aug 1, 2024

Path traversal in the OpenCart marketplace installer from 4.0.0.0 allows remote authenticated users to write arbitrary files. The installer normalizes separators but leaves traversal segments in archive entry names before creating directories and passing the derived paths to file_put_contents. Marketplace modification privileges are required; a crafted extension can place executable PHP in the web root and run commands with the web process's access.

CVSS severity7.2
High
EPSS probability14.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in the OpenCart marketplace installer from 4.0.0.0 allows remote authenticated users to write arbitrary files. The installer normalizes separators but leaves traversal segments in archive entry names before creating directories and passing the derived paths to file_put_contents. Marketplace modification privileges are required; a crafted extension can place executable PHP in the web root and run commands with the web process's access.

The record

CVE
CVE-2024-21518
Published
Jun 22, 2024
Updated
Aug 1, 2024
Vendor
OpenCart
Product
OpenCart
Classifications
CWE-22, CWE-29, T1505.003
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jun 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.0.0.0 <*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

OpenCart · OpenCartversion=4.0.0.0 <*

Published CVSS scores

8.4GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.2NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-29Path Traversal: '..filename'
T1505.003Server Software Component: Web Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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