CVE-2024-24399Public exploitNetwork attack vector

Authenticated code execution via unrestricted PHP upload

Published Jan 25, 2024 · Updated Jun 5, 2025

Unrestricted file upload in LEPTON CMS 7.0.0 allows remote authenticated users to execute arbitrary PHP code through the language manager. The backend/languages/index.php language manager accepts an upgrade.php file containing executable PHP and installs it without rejecting the dangerous file type. Administrative credentials and an explicit install action are required; successful exploitation runs attacker-supplied commands with the web server process's privileges.

CVSS severity7.2
High
EPSS probability15.60%
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 LEPTON CMS 7.0.0 allows remote authenticated users to execute arbitrary PHP code through the language manager. The backend/languages/index.php language manager accepts an upgrade.php file containing executable PHP and installs it without rejecting the dangerous file type. Administrative credentials and an explicit install action are required; successful exploitation runs attacker-supplied commands with the web server process's privileges.

The record

CVE
CVE-2024-24399
Published
Jan 25, 2024
Updated
Jun 5, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, CAPEC-1, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 25, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 5, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.2CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2NIST NVDCVSS: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
Privilegesauthenticated
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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