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

Goal: 1000 CNY · Raised: 1000 CNY

100.0%

CVE-2025-54321 PoC — Ascertia SigningHub 安全漏洞

Source
Associated Vulnerability
Title:Ascertia SigningHub 安全漏洞 (CVE-2025-54321)
Description:Ascertia SigningHub是英国Ascertia公司的一个电子签名软件。 Ascertia SigningHub 8.6.8及之前版本存在安全漏洞,该漏洞源于重置密码功能缺乏速率限制,可能导致电子邮件轰炸。
Readme
# CVE-2025-54321 Reset Password Email Bombing 

# Description

The reset password function does not implement rate limiting for the target email address. This allows for an Email Bombing attack

 ------------------------------------------
  
# 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
  
* Reset Password Function.

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

* Implement rate-limit for the reset password api.
  
------------------------------------------
Vulnerability Details

* there is a lack of rate limiting on the reset password function, leading to an email bombing vulnerability. authenticated attacker can exploit this by automating reset password requests to flood targeted user accounts with a high volume of password reset emails. This not only overwhelms the victim's mailbox, making it difficult to manage and locate legitimate emails, but also significantly impacts mail servers by consuming their resources. The increased load can cause performance degradation and, in severe cases, make the mail servers unresponsive or unavailable, disrupting email services for the entire organization


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

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

 Discoverer
 * Yazan Abu-Nadi
File Snapshot

[4.0K] /data/pocs/81c0d35d5f4b83c0cc1661f36e261b73596644b0 └── [1.6K] 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.