CVE-2025-48200: Sjbr/sr feuser register Remote Code Execution Vulnerability

CRITICAL
Advisory Identifier: GHSA-qfm8-78qf-p75j
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CVSS 10.0
CWE-502
Published
Advisory Summary

CVE-2025-48200 is a CRITICAL (CVSS 10.0) remote code execution vulnerability (CWE-502: Deserialization of Untrusted Data) affecting Sjbr/sr feuser register libraries in the Packagist ecosystem. The issue involves the front end user registration extension for typo3 (sr_feuser_register) remote code execution. Remediation is available by upgrading affected packages to version 12.5.0.

CVE-2025-48200 at a Glance

CVE Identifier CVE-2025-48200
GHSA Identifier GHSA-qfm8-78qf-p75j
Severity CRITICAL
CVSS v3.1 Base Score 10.0
CWE Classification CWE-502: Deserialization of Untrusted Data
Affected Product Sjbr/sr feuser register
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 10.0

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2025-48200

To remediate this vulnerability, upgrade all affected Sjbr/sr feuser register dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

sjbr/sr-feuser-register fixed: 12.5.0 
Upgrade sjbr/sr-feuser-register to 12.5.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for sjbr/sr-feuser-register

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-48200, inspect your project dependencies for Sjbr/sr feuser register:

inspect dependencies for sjbr/sr-feuser-register

Analyze the terminal output to locate any version of Sjbr/sr feuser register in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 12.5.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-502: Deserialization of Untrusted Data, where the product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. In Sjbr/sr feuser register, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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

CVE-2025-48200 Affected Sjbr/sr feuser register Versions

1 component(s)
Fixed Versions:
12.5.0
Product / Package Ecosystem Affected Versions Fixed Version
sjbr/sr-feuser-register
 Packagist
≥ 5.1.0
< 12.5.0
12.5.0

References

NVD — CVE-2025-48200 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-48200
codeberg.org/sjbr/sr-feuser-regi... WEB
https://codeberg.org/sjbr/sr-feuser-register/commit/be44f61a475371c36b2035cbb523b56f5e34267d
Sjbr/sr feuser register Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/sjbr/sr-feuser-register/CVE-2025-48200.yaml
Sjbr/sr feuser register Security Information SECURITY
https://typo3.org/security/advisory/typo3-ext-sa-2025-008

Frequently Asked Questions

What is CVE-2025-48200?
CVE-2025-48200 is a security vulnerability in Sjbr/sr feuser register involving The Front End User Registration extension for TYPO3 (sr_feuser_register) Remote Code Execution under CWE-502: Deserialization of Untrusted Data.
Which Sjbr/sr feuser register versions are affected?
Affected versions include releases prior to 12.5.0 across affected packages: sjbr/sr-feuser-register.
What version fixes CVE-2025-48200?
Upgrading to 12.5.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is sjbr/sr-feuser-register affected?
Yes, sjbr/sr-feuser-register is affected in releases prior to 12.5.0. Upgrade your dependency to 12.5.0 or later.
What is the CVSS score of CVE-2025-48200?
CVE-2025-48200 has a CVSS v3.1 base score of 10.0 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2025-48200?
CVE-2025-48200 is classified under CWE-502: Deserialization of Untrusted Data (The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.).
How can I check Packagist dependencies for CVE-2025-48200?
Run the dependency tree command: 'inspect dependencies for sjbr/sr-feuser-register'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-qfm8-78qf-p75j",
  "modified" : "2025-05-21T19:52:50Z",
  "published" : "2025-05-21T19:52:49Z",
  "aliases" : [ "CVE-2025-48200" ],
  "summary" : "The Front End User Registration extension for TYPO3 (sr_feuser_register) Remote Code Execution",
  "details" : "The sr_feuser_register extension through 12.4.8 for TYPO3 allows Remote Code Execution via unsafe deserialization.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "sjbr/sr-feuser-register"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "5.1.0"
      }, {
        "fixed" : "12.5.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-48200"
  }, {
    "type" : "WEB",
    "url" : "https://codeberg.org/sjbr/sr-feuser-register/commit/be44f61a475371c36b2035cbb523b56f5e34267d"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/sjbr/sr-feuser-register/CVE-2025-48200.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://typo3.org/security/advisory/typo3-ext-sa-2025-008"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-502" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-05-21T19:52:49Z",
    "nvd_published_at" : "2025-05-21T16:15:32Z"
  }
}