CVE-2025-47220

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 71/100
Published: 2025-11-13 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

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

Description

A local file enumeration was found in Keyfactor SignServer versions prior to 7.3.2 .The property VISIBLE_SIGNATURE_CUSTOM_IMAGE_PATH, which exists in the PDFSigner and the PAdESSigner, can be set to any path without any restrictions by an admin user. In the case that the provided path points to an existing file, readable by the user running the application server, but is not a recognized image format, it will return this as an error to the clientside, confirming the existences of the file.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
keyfactor signserver < 7.3.1

Bug Bounty Relevance

71 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

5.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS — Exploitation Probability

0.29%
Raw Score 0.002850
Percentile 21.3%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00285
2026-11-13
0.00285
2026-11-12
0.00285
2026-11-10
0.00285
2026-11-09
0.00285
2026-11-08
0.00285
2026-11-07
0.00285
2026-11-06
0.00285
2026-11-05
0.00285

Intelligence Sources

nvd ref →