CVE-2024-29515Public exploitNetwork attack vector

Authenticated code execution via configurable PHP uploads

Published Mar 25, 2024 · Updated Aug 19, 2024

Unrestricted file upload in LEPTON CMS 7.1.0 allows remote authenticated users to execute arbitrary code through a crafted PHP file. The backend/settings/save.php handler stores a user-supplied PHP extension in upload_whitelist, and the file-manager config.php reads that list without excluding executable extensions. Backend settings access is required; after the media uploader stores the PHP file, requesting its URL executes code with the web server's privileges.

CVSS severity8.8
High
EPSS probability1.16%
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 7.1.0 allows remote authenticated users to execute arbitrary code through a crafted PHP file. The backend/settings/save.php handler stores a user-supplied PHP extension in upload_whitelist, and the file-manager config.php reads that list without excluding executable extensions. Backend settings access is required; after the media uploader stores the PHP file, requesting its URL executes code with the web server's privileges.

The record

CVE
CVE-2024-29515
Published
Mar 25, 2024
Updated
Aug 19, 2024
Vendor
LEPTON Project
Product
LEPTON CMS
Classifications
CWE-434, CAPEC-1, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 25, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 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=7.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

LEPTON Project · LEPTON CMSversion=7.1.0

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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
T1505.003Server 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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