Client Invoicing by Sprout Invoices < 20.8.16 - Subscriber+ Private Note Overwrite via si_edit_private_note (CVE-2026-87797) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-87797

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

Answer in brief

CVE-2026-87797 records a Unknown severity vulnerability in Client Invoicing by Sprout Invoices < 20.8.16 - Subscriber+ Private Note Overwrite via si_edit_private_note. The current sources do not mark it as known exploited. The current feed maps Unknown/Sprout Invoices (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 12, 2026Updated Sep 12, 2026Source checked Sep 12, 2026First seen by HOL Sep 12, 2026Material review Sep 12, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Unknown/Sprout Invoices (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unknown/Sprout Invoicesgeneric	>=0 <20.8.16	20.8.16

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unknown/Sprout Invoices.
Review the reported fix. Update Unknown/Sprout Invoices to 20.8.16 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 12, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 12, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 12, 2026

Sources and claim methodology

Source referencewpscan.com

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.