CVE-2024-40394Public exploitNetwork attack vector

Remote code execution via unrestricted PHP upload

Published Jul 16, 2024 · Updated Aug 2, 2024

Unrestricted file upload in SourceCodester Simple Library Management System 1.0 allows remote attackers to execute PHP code via ajax.php. The save_book action takes the img filename and content from $_FILES and writes it to a server-accessible location without validating or cleaning the type or path. No privileges or user interaction are required; an uploaded PHP file executes commands with the web server's permissions.

CVSS severity9.8
Critical
EPSS probability0.65%
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 Simple Library Management System 1.0 allows remote attackers to execute PHP code via ajax.php. The save_book action takes the img filename and content from $_FILES and writes it to a server-accessible location without validating or cleaning the type or path. No privileges or user interaction are required; an uploaded PHP file executes commands with the web server's permissions.

The record

CVE
CVE-2024-40394
Published
Jul 16, 2024
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, CAPEC-1, T1190, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

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.

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
CAPEC-1Accessing Functionality Not Properly Constrained by ACLs
T1190Exploit Public-Facing Application
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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