Vulnerability · Published Sep 12, 2026 · Assigned by WPScan
CVE-2026-87797Client Invoicing by Sprout Invoices < 20.8.16 - Subscriber+ Private Note Overwrite via si_edit_private_note
Medium 4.3
In plain English
A medium-severity missing authorization in Sprout Invoices from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 82.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | Sprout Invoices | 0 – before 20.8.16 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
References
- https://wpscan.com/vulnerability/ded55e47-568d-4702-b043-4707e4182a09/ exploit, vdb-entry, technical-description