CVE-2024-40744Network attack vector

Unauthorized file upload via type restriction bypass

Published Dec 4, 2024 · Updated Dec 25, 2024

Unrestricted file upload in Convert Forms 1.0.0 through 4.4.7 allows remote attackers to place unauthorized files on a Joomla server. The File Upload field's server-side validation accepts file types outside the form creator's allowlist, bypassing the intended restriction. A public form with file upload must be reachable; code execution additionally depends on server configuration, while successful uploads can distribute malicious files to form recipients.

CVSS severity9.8
Critical
EPSS probability0.52%
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 Convert Forms 1.0.0 through 4.4.7 allows remote attackers to place unauthorized files on a Joomla server. The File Upload field's server-side validation accepts file types outside the form creator's allowlist, bypassing the intended restriction. A public form with file upload must be reachable; code execution additionally depends on server configuration, while successful uploads can distribute malicious files to form recipients.

The record

CVE
CVE-2024-40744
Published
Dec 4, 2024
Updated
Dec 25, 2024
Vendor
Code Snippets Pro
Product
Convert Forms
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 4, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 25, 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=1.0.0-4.4.7
  2. Affected versionversion=1.0.0 <4.4.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Code Snippets Pro · Convert Formsversion=1.0.0-4.4.7; version=1.0.0 <4.4.8

Published CVSS scores

9.8CISA-ADPCVSS: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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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