CVE-2022-40721Public exploitNetwork attack vector

Unauthenticated code execution via unrestricted PHP upload

Published Oct 3, 2022 · Updated Aug 3, 2024

Unrestricted file upload in CreativeDream PHP File Uploader 0.3 allows remote attackers to execute PHP code through the example endpoint. The bundled examples/upload.php passes attacker-controlled files to Uploader::upload with the extensions allowlist set to null, so PHP payloads are stored beneath the web root. No authentication is required; code execution occurs when the uploaded PHP file is requested through a PHP-enabled web server.

CVSS severity9.8
Critical
EPSS probability1.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in CreativeDream PHP File Uploader 0.3 allows remote attackers to execute PHP code through the example endpoint. The bundled examples/upload.php passes attacker-controlled files to Uploader::upload with the extensions allowlist set to null, so PHP payloads are stored beneath the web root. No authentication is required; code execution occurs when the uploaded PHP file is requested through a PHP-enabled web server.

The record

CVE
CVE-2022-40721
Published
Oct 3, 2022
Updated
Aug 3, 2024
Vendor
CreativeDream
Product
PHP File Uploader
Classifications
CWE-434, CAPEC-1, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 3, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=v0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CreativeDream · PHP File Uploaderversion=v0.3

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CAPEC-1Accessing Functionality Not Properly Constrained by ACLs
T1505.003Web 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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