CVE-2025-56219

HIGH

SigningHub < 8.6.8 - Unauthenticated User Account Creation and Denial of Service

Title source: llm

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.

References (3)

Core 3

Core References

Product

http://ascertia.com

Product

http://signinghub.com

Third Party Advisory

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

View Writeup ZIP pw:eip

Scores

CVSS v3 7.1

EPSS 0.0037

EPSS Percentile 28.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-284

Status published

Products (1)

ascertia/signinghub < 8.6.8

Published Oct 20, 2025

Tracked Since Feb 18, 2026