CVE-2023-52044Public exploitNetwork attack vector

Unauthenticated code execution via accepted PHP8 uploads

Published Oct 31, 2024 · Updated Nov 1, 2024

Unrestricted file upload in Studio 42 Ltd. elFinder 2.1.62 allows remote attackers to execute code via a crafted .php8 file. The LocalFileSystem driver's staticMimeMap omits .php8, so the upload path accepts PHP source under a suffix that some Apache/PHP handlers execute. Exploitation requires a writable connector and a web-server handler that treats .php8 as PHP, after which code runs as the web-server account.

CVSS severity9.8
Critical
EPSS probability0.79%
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 Studio 42 Ltd. elFinder 2.1.62 allows remote attackers to execute code via a crafted .php8 file. The LocalFileSystem driver's staticMimeMap omits .php8, so the upload path accepts PHP source under a suffix that some Apache/PHP handlers execute. Exploitation requires a writable connector and a web-server handler that treats .php8 as PHP, after which code runs as the web-server account.

The record

CVE
CVE-2023-52044
Published
Oct 31, 2024
Updated
Nov 1, 2024
Vendor
Studio 42 Ltd.
Product
elFinder
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 31, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 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=2.1.62

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Studio 42 Ltd. · elFinderversion=2.1.62

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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

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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