CVE-2025-48200Network attack vector

Unauthenticated code execution via unsafe file deserialization

Published May 21, 2025 · Updated May 22, 2025

PHP object injection in TYPO3 Front End User Registration 5.1.0 through 12.4.8 allows remote attackers to execute arbitrary code. The extension accepts a serialized representation of a previously uploaded file without validating it, then deserializes attacker-controlled PHP objects server-side. No authentication or user interaction is required, and successful exploitation grants code execution in the TYPO3 server process.

CVSS severity10.0
Critical
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

PHP object injection in TYPO3 Front End User Registration 5.1.0 through 12.4.8 allows remote attackers to execute arbitrary code. The extension accepts a serialized representation of a previously uploaded file without validating it, then deserializes attacker-controlled PHP objects server-side. No authentication or user interaction is required, and successful exploitation grants code execution in the TYPO3 server process.

The record

CVE
CVE-2025-48200
Published
May 21, 2025
Updated
May 22, 2025
Vendor
in2code GmbH
Product
Front End User Registration (sr_feuser_register)
Classifications
CWE-502, CAPEC-586, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 21, 2025CVE publishedPublication date reported by the CVE source.
  2. May 22, 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=5.1.0 <12.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

in2code GmbH · Front End User Registration (sr_feuser_register)version=5.1.0 <12.5.0

Published CVSS scores

10.0GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
CAPEC-586Object Injection
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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