What’s Vulnerable › Vulnerabilities
CVE-2026-87797: Client Invoicing by Sprout Invoices < 20.8.16 - Subscriber+ Private Note Overwrite via si_edit_private_note
- Severity: medium (CVSS 4.3 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: 2026-09-12 · updated 2026-09-14
- Weakness: CWE-862
Description
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
- Sprout Invoices: before 20.8.16 — fixed in 20.8.16
How to fix
Upgrade to a fixed version: Sprout Invoices 20.8.16. Check the vendor advisory for mitigations.
References
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