CVE-2023-43740Public exploitNetwork attack vector

Authenticated code execution via unchecked image upload

Published Sep 28, 2023 · Updated Sep 23, 2024

Unrestricted file upload in Online Book Store Project 1.0 allows remote authenticated users to execute code via a crafted book image. The image parameter accepted by admin_edit.php passes a submitted book image to code in edit_book.php without validating its contents, extension, or media type. An authenticated account with access to the book-editing function can upload a server-executable file and run code on the application host.

CVSS severity8.8
High
EPSS probability1.21%
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 Online Book Store Project 1.0 allows remote authenticated users to execute code via a crafted book image. The image parameter accepted by admin_edit.php passes a submitted book image to code in edit_book.php without validating its contents, extension, or media type. An authenticated account with access to the book-editing function can upload a server-executable file and run code on the application host.

The record

CVE
CVE-2023-43740
Published
Sep 28, 2023
Updated
Sep 23, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, CAPEC-549, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8Fluid AttacksCVSS: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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CAPEC-549Local Execution of Code
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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