Overview
A critical vulnerability designated as CVE-2025-51628 has been identified in Agenzia Impresa Eccobook v2.81.1 and below. The vulnerability lies within the PdfHandler component, and is classified as an Insecure Direct Object Reference (IDOR) type, which can allow unauthenticated attackers to access confidential documents. This poses a significant risk to data security and confidentiality for users of the affected versions of the software.
Vulnerability Summary
CVE ID: CVE-2025-51628
Severity: High (CVSS: 7.5)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Confidentiality breach through unauthorized access to sensitive documents
Affected Products
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Product | Affected Versions
Agenzia Impresa Eccobook | v2.81.1 and below
How the Exploit Works
The vulnerability in question is an Insecure Direct Object Reference (IDOR) vulnerability. This occurs when an application exposes a reference to an internal implementation object, such as a file or database key. In the case of CVE-2025-51628, the ‘DocumentoId’ parameter in the PdfHandler component is improperly validated, allowing attackers to manipulate references and gain unauthorized access to confidential documents.
Conceptual Example Code
Here’s a hypothetical example of how an attacker might exploit this vulnerability. The attacker sends a malicious HTTP request, manipulating the ‘DocumentoId’ parameter to access confidential documents:
GET /PdfHandler?DocumentoId=123456 HTTP/1.1
Host: target.example.com
In this example, ‘123456’ represents the ID of the document the attacker wants to access. The server would then send the requested document without validating the user’s access rights, leading to a confidentiality breach.

