CVE-2025-64227: Boldgrid Client Invoicing By Sprout Invoices

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Deserialization of Untrusted Data vulnerability in BoldGrid Client Invoicing by Sprout Invoices sprout-invoices allows Object Injection.This issue affects Client Invoicing by Sprout Invoices: from n/a through <= 20.8.7.

Affected products

• Boldgrid Client Invoicing By Sprout Invoices: up to and including 20.8.7

Published 2025-12-18. Last modified 2026-10-05.