Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%

CVE-2025-56219 PoC — SigningHub 安全漏洞

Source
Associated Vulnerability
Title:SigningHub 安全漏洞 (CVE-2025-56219)
Description:SigningHub是英国SigningHub公司的一个电子签名平台。 SigningHub v8.6.8版本存在安全漏洞,该漏洞源于访问控制不当且无速率限制,可能导致资源耗尽和拒绝服务攻击。
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.

 ------------------------------------------

  
CVSS Score: 7.1 (High)

------------------------------------------
 Attack Type

 * Remote (Authenticated)
   
------------------------------------------

 Affected Versions

* Versions before <= 8.6.8

------------------------------------------
 Vendor of Product

*  Ascertia

 ------------------------------------------

  Affected Product Code Base
  
* SigningHub

 ------------------------------------------

  Affected Component
  
* Add User API.

 ------------------------------------------ 
 
 Mitigations

* Implement rate-limit for the Add User API.
  
------------------------------------------
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).

------------------------------------------

 Fixed versions
 *  Versions after > 8.6.8 
 
------------------------------------------

 Discovered By:
 * Yazan Abu-Nadi
File Snapshot

[4.0K] /data/pocs/1a7b8a2a57fd32efb8eeef3830a6a439a5707510 └── [1.3K] README.md 1 directory, 1 file
Shenlong Bot has cached this for you
Remarks
    1. It is advised to access via the original source first.
    2. If the original source is unavailable, please email f.jinxu#gmail.com for a local snapshot (replace # with @).
    3. Shenlong has snapshotted the POC code for you. To support long-term maintenance, please consider donating. Thank you for your support.