CVE-2025-4923Public exploitNetwork attack vector

Unauthenticated code execution via unrestricted PHP upload

Published May 19, 2025 · Updated May 19, 2025

Unrestricted file upload in SourceCodester Client Database Management System 1.0 allows remote attackers to execute PHP code. The user_delivery_update.php endpoint accepts uploaded_file_cancelled as an image without validating its extension or content, then stores the attacker-chosen PHP file in the web-accessible files directory. No authentication is required, and requesting the uploaded script executes code in the web server context, enabling data access, tampering, or service interruption.

CVSS severity6.9
Medium
EPSS probability0.49%
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 SourceCodester Client Database Management System 1.0 allows remote attackers to execute PHP code. The user_delivery_update.php endpoint accepts uploaded_file_cancelled as an image without validating its extension or content, then stores the attacker-chosen PHP file in the web-accessible files directory. No authentication is required, and requesting the uploaded script executes code in the web server context, enabling data access, tampering, or service interruption.

The record

CVE
CVE-2025-4923
Published
May 19, 2025
Updated
May 19, 2025
Vendor
Online Computer and Laptop Store Project
Product
Client Database Management System
Classifications
CWE-434, CWE-284, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 19, 2025CVE publishedPublication date reported by the CVE source.
  2. May 19, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Online Computer and Laptop Store Project · Client Database Management Systemversion=1.0

Published CVSS scores

7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P

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 exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CWE-284Improper Access Control
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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