CVE-2025-48200 The Front End User Registration extension for TYPO3 (sr_feuser_register) Remote Code Execution

Critical 10.0 Published Updated

An attacker can achieve remote code execution via unsafe deserialization in the sr_feuser_register extension for TYPO3.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2025-48200?

CVE-2025-48200 is a critical unsafe deserialization vulnerability in TYPO3 sr feuser register extension, published on 21 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The sr_feuser_register extension through 12.4.8 for TYPO3 allows Remote Code Execution.

Weakness: CWE-502

Which versions are affected by CVE-2025-48200?

2 open source packages ship an affected version, including sjbr/sr-feuser-register.

PackageAffectedFixed in
sjbr/sr-feuser-register PackagistFrom 5.1.012.5.0
sjbr/sr-feuser-register PackagistFrom 5.1.012.5.0

How do I fix CVE-2025-48200?

Upgrade sjbr/sr-feuser-register to 12.5.0 or later.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2025-48200 being exploited?

There is no known exploitation of CVE-2025-48200 in the wild and no public exploit code.

Sources

Also known as GHSA-qfm8-78qf-p75j.

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