CVE-2025-47220

Medium

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.

SeverityMedium

CVSS5.3

Exploit probability—

ProductKeyfactor Signserver

PublishedNov 13, 2025

First seenNov 13, 2025

Weakness typeCWE-284Improper access control

How to fix

Update

keyfactor signserver7.3.1 or later

Vendor advisories

docs.keyfactor.com/signserver/latest/signserver-7-3-release-notes

Affected products

Product	Affected versions	Fixed in
keyfactor signserver	v < 7.3.1	7.3.1

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