CVE-2025-56218

CRITICAL

SigningHub < 8.6.8 - Arbitrary File Upload via Crafted PDF File

Title source: llm

An arbitrary file upload vulnerability in SigningHub v8.6.8 allows attackers to execute arbitrary code via uploading a crafted PDF file.

Core 3

Core References

Product

Product

Third Party Advisory

CVSS v3 9.8

EPSS 0.0067

EPSS Percentile 46.8%

Attack Vector NETWORK

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

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

CWE

CWE-434

Status published

Products (1)

ascertia/signinghub < 8.6.8

Published Oct 17, 2025

Tracked Since Feb 18, 2026