Overview
CVE-2025-48205 is a serious vulnerability residing in the sr_feuser_register extension, versions up to and including 12.4.8, for the TYPO3 content management system. It presents a potential risk for system compromise or data leakage due to an Insecure Direct Object Reference (IDOR) flaw. TYPO3 is widely used for managing web content, hence this vulnerability potentially threatens millions of websites globally. This vulnerability is of paramount importance due to its high CVSS severity score and the potential harm it could inflict if exploited.
Vulnerability Summary
CVE ID: CVE-2025-48205
Severity: High (Score: 8.6)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise and data leakage
Affected Products
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Product | Affected Versions
sr_feuser_register extension for TYPO3 | <= 12.4.8 How the Exploit Works
An Insecure Direct Object Reference occurs when an application exposes an internal implementation object, such as a file, directory, or database key. Without an access control check or other protection, attackers can manipulate these references to gain unauthorized access to data. In this case, the sr_feuser_register extension for TYPO3 allows such insecure references, potentially leading to unauthorized access and manipulation of the system or data.
Conceptual Example Code
This is a conceptual example of how the vulnerability might be exploited. An attacker could potentially send a crafted HTTP request like the one below to manipulate direct object references.
POST /typo3/sr_feuser_register HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"user": {
"id": "malicious_id"
}
}In this example, `malicious_id` is an object id that the attacker has no authorization to access. The sr_feuser_register extension fails to adequately check the permissions for accessing the `id`, allowing the attacker to manipulate or access unauthorized data.
Mitigation
Organizations are strongly recommended to apply the patch provided by the vendor to mitigate this vulnerability. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. These systems can monitor and block potentially harmful activities. However, these should not be seen as long-term solutions, as they cannot fully eliminate the vulnerability.