CVE-2025-56224

HIGH

SigningHub < 8.6.8 - Unauthenticated Brute-Force Attack via OTP Verification Endpoint

Title source: llm

Description

A lack of rate limiting in the One-Time Password (OTP) verification endpoint of SigningHub v8.6.8 allows attackers to bypass verification via a bruteforce attack.

References (3)

Core 3

Core References

Product

http://ascertia.com

Product

http://signinghub.com

Third Party Advisory

https://github.com/saykino/CVE-2025-56224

View Writeup ZIP pw:eip

Scores

CVSS v3 8.1

EPSS 0.0042

EPSS Percentile 33.7%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-307

Status published

Products (1)

ascertia/signinghub < 8.6.8

Published Oct 20, 2025

Tracked Since Feb 18, 2026