CVE-2023-39147Public exploitNetwork attack vector

Authenticated code execution via unrestricted image upload

Published Aug 1, 2023 · Updated Feb 13, 2025

Arbitrary file upload in Webkul UVdesk 1.1.3 allows remote authenticated users to execute PHP code through a crafted image upload. The knowledge-base folder creation endpoint accepts a solutionImage part labeled image/jpg, retains a .php filename, and places it under the web-accessible assets/knowledgebase path. A valid member account with folder-creation access is required; requesting the uploaded PHP file then runs commands as the web server.

CVSS severity7.8
High
EPSS probability1.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file upload in Webkul UVdesk 1.1.3 allows remote authenticated users to execute PHP code through a crafted image upload. The knowledge-base folder creation endpoint accepts a solutionImage part labeled image/jpg, retains a .php filename, and places it under the web-accessible assets/knowledgebase path. A valid member account with folder-creation access is required; requesting the uploaded PHP file then runs commands as the web server.

The record

CVE
CVE-2023-39147
Published
Aug 1, 2023
Updated
Feb 13, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 1, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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
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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