CVE-2026-39562: Boldgrid Client Invoicing By Sprout Invoices

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Missing Authorization vulnerability in BoldGrid Client Invoicing by Sprout Invoices sprout-invoices allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Client Invoicing by Sprout Invoices: from n/a through <= 20.8.10.

Affected products

• Boldgrid Client Invoicing By Sprout Invoices: up to and including 20.8.10

Published 2026-04-08. Last modified 2026-07-24.