CVE-2025-56219 PoC — SigningHub 安全漏洞

Source

https://github.com/saykino/CVE-2025-56219

Associated Vulnerability

Title: SigningHub 安全漏洞 (CVE-2025-56219)
Description:Incorrect access control in SigningHub v8.6.8 allows attackers to arbitrarily add user accounts without any rate limiting. This can lead to a resource exhaustion and a Denial of Service (DoS) when an excessively large number of user accounts are created.

Readme

# CVE-2025-56219 Lack of Rate Limiting – Add User API 

Description

An attacker can automate the creation of a large number of Users in a short period of time to cause a DoS.

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CVSS Score: 7.1 (High)

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 Attack Type

 * Remote (Authenticated)
   
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 Affected Versions

* Versions before <= 8.6.8

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 Vendor of Product

*  Ascertia

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  Affected Product Code Base
  
* SigningHub

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  Affected Component
  
* Add User API.

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 Mitigations

* Implement rate-limit for the Add User API.
  
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Vulnerability Details

* The application allows users to add new user accounts without any rate limiting or throttling in place. This flaw enables an attacker to automate the creation of a large number of user accounts in a short period of time, potentially leading to resource exhaustion, database bloating, or denial of service (DoS).

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 Fixed versions
 *  Versions after > 8.6.8 
 
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 Discovered By:
 * Yazan Abu-Nadi

File Snapshot

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