CVE-2026-87797: Unknown Sprout Invoices

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

The Sprout Invoices WordPress plugin before 20.8.16 does not perform a capability or ownership check before allowing a private note to be overwritten through one of its AJAX actions, allowing any authenticated user such as a subscriber to overwrite private notes on records belonging to other users.

Affected products

• Unknown Sprout Invoices: before 20.8.16 (fixed in 20.8.16)

Published 2026-09-12. Last modified 2026-09-14.