CVE-2025-56219

HIGH 1 PoC
MEDIUM Priority: 0.02 BB Relevance: 74/100
Published: 2025-10-20 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: Low
A: High

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
ascertia signinghub < 8.6.8

References & Advisories (1)

Proof of Concept (1)

Bug Bounty Relevance

74 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction
✓ PoC available (1)

CVSS Score

7.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

EPSS — Exploitation Probability

0.33%
Raw Score 0.003310
Percentile 26.6%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00331
2026-11-12
0.00331
2026-11-10
0.00331
2026-11-09
0.00331
2026-11-08
0.00323
2026-11-07
0.00323
2026-11-06
0.00323
2026-11-05
0.00323

Intelligence Sources

nvd ref →