CVE-2026-87797

Client Invoicing by Sprout Invoices < 20.8.16 - Subscriber+ Private Note Overwrite via si_edit_private_note

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

Sprout Invoices

CVSS v3.1 CNA

4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS

0.25% chance of exploitation in the next 30 days, 16th percentile

Published

2026-09-12

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/ded55e47-568d-4702-b043-4707e4182a09/

References

• CVE Record
• NVD entry