CVE-2025-48200
Published: 21 May 2025
Summary
CVE-2025-48200 is a critical-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Typo3 (inferred from references). Its CVSS base score is 10.0 (Critical).
Operationally, ranked in the top 15.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The sr_feuser_register extension through version 12.4.8 for TYPO3 is affected by a remote code execution vulnerability tracked as CVE-2025-48200. The flaw stems from unsafe handling of untrusted data under CWE-502 and carries a maximum CVSS score of 10.0, reflecting network-accessible exploitation without authentication or user interaction and a scope change that impacts the underlying TYPO3 installation.
Unauthenticated remote attackers can supply malicious serialized input to the extension and achieve arbitrary code execution on the server, resulting in full confidentiality, integrity, and availability impact on the affected TYPO3 instance.
The referenced TYPO3 security advisory (typo3-ext-sa-2025-008) addresses mitigation steps and patch availability for the extension. The associated EPSS score remains flat at 0.0218 with no material increase observed after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-16007
Vulnerability details
The sr_feuser_register extension through 12.4.8 for TYPO3 allows Remote Code Execution.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing supplies malicious serialized objects, detecting unsafe deserialization and supporting corrective actions.
Evaluation of untrusted data handling (deserialization testing) reveals unsafe processing, which the required remediation process addresses.
Untrusted serialized data can be deserialized and observed inside the chamber, blocking gadget-chain exploitation outside the sandbox.
Validates or rejects untrusted serialized data before deserialization occurs.
Identifies and blocks malicious code introduced through deserialization of untrusted data at system boundaries.
Integrity verification of serialized information can detect tampering before deserialization occurs.
Provenance of associated data allows detection of untrusted sources before deserialization or processing occurs.