CVE-2024-23759Public exploitNetwork attack vector

Unauthenticated code execution via unsafe PHP deserialization

Published Feb 12, 2024 · Updated May 7, 2025

Insecure deserialization in Gambio 4.9.2.0 and earlier allows remote attackers to execute arbitrary code through a crafted search parameter. ParcelshopfinderController.inc.php base64-decodes the Parcelshopfinder/AddAddressBookEntry search value and passes it directly to PHP unserialize(). No prior account is required because guest creation is automated, and a bundled Guzzle gadget chain writes attacker-controlled PHP into the web root.

CVSS severity9.8
Critical
EPSS probability47.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insecure deserialization in Gambio 4.9.2.0 and earlier allows remote attackers to execute arbitrary code through a crafted search parameter. ParcelshopfinderController.inc.php base64-decodes the Parcelshopfinder/AddAddressBookEntry search value and passes it directly to PHP unserialize(). No prior account is required because guest creation is automated, and a bundled Guzzle gadget chain writes attacker-controlled PHP into the web root.

The record

CVE
CVE-2024-23759
Published
Feb 12, 2024
Updated
May 7, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, CWE-502, T1190, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 12, 2024CVE publishedPublication date reported by the CVE source.
  2. May 7, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
CWE-502Deserialization of Untrusted Data
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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