What’s Vulnerable › Vulnerabilities

CVE-2025-47220

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-11-13 · updated 2026-06-17
• Weakness: CWE-284

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.

Affected products

• Keyfactor Signserver: before 7.3.1 — fixed in 7.3.1

How to fix

Upgrade to a fixed version: Keyfactor Signserver 7.3.1. Check the vendor advisory for mitigations.

References

• https://docs.keyfactor.com/signserver/latest/signserver-7-3-release-notes
• https://support.keyfactor.com
• https://support.keyfactor.com/hc/en-us/articles/37638761131035-SignServer-CVE-2025-47220-Local-file-enumeration

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